Birds in the enclosure (Spring)

Spring is all around! The days are longer and warmer, buds are beginning to burst into leaf and very soon there will be lots of wobbly new-born reindeer calves taking their first steps in our hill enclosure. As well as the reindeer which increase in number on the hill, so will the bird life as migratory birds arrive from warmer places such as Africa, Southern Europe or even coastal Britain to breed and rear young. All the herders enjoy and appreciate the different birds we get in the enclosure during different times of the year and spring announces the return of some of our favourites.

Ring Ouzel – It may be a fair assumption that this species is the favourite of migratory birds amongst herders. Known as the mountain blackbird, they are a little longer and more upright than their more common cousins and get their name because of the male’s obvious white bib under the neck. They typically nest in gullies or steep scree slopes on the hill side and like many migrants, arrive in April and leave by September. Along with a beautiful song and obvious alarm call it is always a joy to see these birds in and around the enclosure looking for invertebrates to feed on.

Ring Ouzel (image from: https://www.british-birdsongs.uk/ring-ouzel/)

Wheatear – Also summer migrants, these little birds can be common across the more upland environment of the Cairngorms. The males are quite colourful with a blue/grey head and back, black wings and an orange like breast. Wheatears like rocky open land but can be seen on moorlands, and coastal grassland, nesting on the ground in holes, scree slopes or stone walls.  They can be seen hopping about in the enclosure for insects and more so on the footpath towards the Chalamain Gap. Sometimes found in Greenland or Canada and wintering in Africa, Wheatear are among the world’s long distance migratory birds, estimated to fly nonstop for up to 2400km in 30 hours! The first one this season was seen early on the 24th of March.

Wheatear (image from: www.birdwatchireland.ie/birds/wheatear)

Golden Plover – During the winter Golden Plover can be found in the UK near the coast or lower farmlands and are often seen in flocks with Lapwing. For the spring and summer they move to the higher moorlands and hillsides to breed and nest on the ground, they can be be seen in our enclosure but their spotted black and golden camouflage plumage keeps them well hidden, it’s not until you hear their high pitched and rather sad sounding alarm call that you realise they are around. These shy but charming waders can also be seen up on many of the higher hills of Scotland and are a great addition to any hill day.

Golden Plover (image from: https://mkoireland.ie/new-irish-wildlife-manual-released/)

Snipe – Another wader to be found regularly in the enclosure is the Snipe. Like Golden Plover, Snipe are in the UK all year round but many of the wintering birds migrate elsewhere to breed, leaving a much smaller population of residents during the spring and summer. They typically enjoy a damp environment in habitat such as marshes, bogs or wet meadows, all of which is abundant in the reindeer enclosure. Snipe have a long straight bill, short legs and rather dumpy shape. You’re more likely to hear their amazing drumming call during the spring season than ever see them, the only time I ever see Snipe is by accidently getting too close and watch as they fire off the ground and whizz away in a fast zig- zagging motion.

Snipe (image from: https://www.birdguides.com/gallery/birds/gallinago-media/544573/)

Skylark – Another British resident that also moves up onto the mountain side during the breeding season is the Skylark. With a very good population throughout the whole of the UK, these birds are by no means uncommon but it’s always a delight to hear their long and beautiful song high in the sky during the Spring and Summer months. Skylark’s are a rather bland looking bird with a grey and brown speckled plumage that looks very similar to that of a meadow pipit. Get close enough though and you’ll also notice a crested head that helps differentiate them. It’s the sound of a Skylark that makes them unmistakable though, flying well over 100 meters high in the sky and singing for up to 15 minutes long, they make a great additional to a hill trip in the enclosure with the reindeer.

Skylark (image from: https://www.birdguides.com/gallery/birds/alauda-arvensis/1003602/)

Black Grouse – The final bird to mention is the Black Grouse. Black Grouse are a rather large bird, the females are a grey/ brown colour while the males are predominantly black with red eyebrows and white under tail and wings feathers. They live in Glenmore and the Cairngorms throughout the year in secret until the Spring and breeding season when the male birds start to Lek. The Lek is a site usually in a clearing close to woodland where the males compete for the most central positions within it. Flashing their tail feathers, the males can be highly active with plenty of showboating while making bubbling and shrieking calls and sometimes fighting to gain position, the Grouse most central in the Lek will attract the most females who watch the drama from a short distance. We are lucky to have a Lek within the enclosure where the birds are undisturbed within the safety of our private space.

Black Grouse (image from: https://www.scotlink.org/species/black-grouse/)

Joe

Reach for the sky! How reindeer antlers grow so fast

They’re the most distinctive feature of the reindeer, and the most incredible. Branching elegantly like the trees which the tundra so sorely misses, and renewing themselves each year, antlers demonstrate nature’s complexity and mystery in one. At this time of year the reindeer’s quickly growing antlers constantly amaze visitors and captivate my own imagination. It occurred to me recently that the cells in growing antlers and the cells used in the Covid-19 vaccine are both the same type of rare cell: undifferentiated stem cells! It might be interesting to join the dots between this.

A line of hungry boys and growing antlers (August 2021)
Nell being inspired to write this blog, surrounded by lots of wonderful antlers (July 2021)

Greater Antlers, Greater Chances…

Large antlers lead to a (sexually selective) advantage in males, and even in females too as those that are better able to defend areas of food in the winter are more likely to produce healthy offspring. A physical advantage in a single characteristic, leading to it’s selection is a process called directional selection. This means that over time, reindeer populations evolve very (VERY) gradually to have larger antlers.

Swedish-born (and the very handsome) Kota, who was used as a breeding bull for several years (August 2017)
The lovely Fly, who tends to grow big antlers for a female (September 2019)

However, large antlers come at a cost, requiring huge amounts of energy to grow in such a short space of time. Reindeer eat lichen, which is fairly low in nutrition and has a long digestive process, as well as other low lying plants, mosses and mushrooms found across sub-arctic areas. As even eating a lot of food won’t make up the energy, the animals shift calcium from parts of the skeleton which don’t carry a lot of weight (such as the ribs) in a process called cyclical reversible osteoporosis, which humans also go through during pregnancy. There are still more adjustments, as the reindeer’s neck and shoulder muscles need to swell in order to carry the bulky weight of the antlers, and movement becomes restrictive. It’s no wonder then that the rutting season becomes so taxing for large bulls that their life is typically shorter than that of a female. Taken to an extreme there is even a theory that the great Irish Elk, or Megalocerous, was partially driven to extinction due to the amount of energy it lost to it’s enormous antlers! I find it unlikely that this will happen to the reindeer but there’s no doubt that these huge organs take a lot for the reindeer to grow.

The Irish Elk or Megaloceros with it’s weighty antlers (image: Biggest. Antlers. Ever. Meet the Irish Elk | At the Smithsonian | Smithsonian Magazine)

Shooting for the Skies

Although we know what pushes antlers to grow to such a huge size, it’s truly incredible when we begin to ask how. Antlers are the fastest growing organs in the animal kingdom, potentially growing around three inches a week (dependent on nutrition). This is mainly due to the quick regeneration of stem cells from which they are formed; the only type of cell in a body which can differentiate into any kind of tissue, such as bone, fat or skin. We have some of these cells in our bone marrow, as an important part of our bodily regeneration, and the quick formation of embryos is also due to them. Stem cells are also an important resource in therapies for degenerative diseases or to support the body following certain aggressive cancer treatments. Stem cells have even been used in the creation of several vaccines – including for Covid-19! This, combined with their versatility and potential in lab experiments makes stem cells an extremely valuable resource to medical research. It’s awesome to think that the same cells from which reindeer antlers are formed are what we use to treat life threatening diseases.

Finally, the antlers are not just useful to the reindeer, but also to the other animals in the wider ecosystem. Often when we find an antler which has been out on the hill for a while it will be worn thin and marked by the tooth marks of different animals. In the Paddocks we also see that mice and squirrels chew the antlers in the display area! This is because once they are dropped they are an open source of calcium which sometimes the reindeer, or other animals, (like your own pet dogs) will chew in order to reclaim the minerals. There have even been times that reindeer have chewed each other’s antlers while they’re still on their head!

Reindeer chewing on a cast antler in the enclosure, video by herder Olly

Next spring I plan to photograph the same reindeer once a week from the time it’s antlers are small stumps until they’re fully grown as there really is an incredible difference. There’s so much which is unique and wonderful to say about antlers and I’m looking forward to writing still more about them!

Ryvita (and her lovely antlers) with Nell on the free-range (August 2021)

P.S. What’s the difference between an antler and a horn?…… A horn makes a noise!

Nell

Pining for a Marten!

A shortened version of this blog has just been published in our twice annual newsletter, but we didn’t have space to fit the whole thing in, so we thought we’d pop it up as a blog too! 

Lockdown was a bizarre and scary period for us all. The term ‘unprecedented’, which I’d rarely heard before, has been used by the news and media every day for months now, and with a lot of uncertainty still ahead, I suspect the word may still be commonly used for some time to come.

Two martens just a couple of feet from the window of my bedroom!

But while we were told to stay at home, protect the NHS and save lives, something quite special was happening in Glenmore and indeed the rest of the country. With the lack of people around, for the first time in a long time, wildlife was once again becoming more visible!

Wildlife! Visible! Look how close!

For the reindeer here in the Cairngorms, they suddenly had the mountains to themselves and it was great to see them in areas they wouldn’t usually graze due to the number of people around. I even found a Ptarmigan nest with eggs right next to a (normally busy) path one day along with countless raptors seen higher up in the hills, but what I really enjoyed most was the change in wildlife close to home near Reindeer House. We had a visiting roe deer with two fawns outside the house on a couple of occasions; I would regularly see Black Grouse all over the glen along with an osprey fishing over Loch Morlich; and an abundance of other birdlife and the usual red squirrels. However, the animal I have most enjoyed has been the Pine Marten. For those who don’t know, a Pine Marten is a part of the mustelid family, which includes stoats and weasels. They are nocturnal and extremely agile, living mostly in trees and predating on small rodents, birds, eggs, insects and fruit. But what makes them so special is how elusive they are – until this year, I’d only seen a few fleetingly as they ran across the road or a path.

A free meal of peanuts!

I first discovered they were around at the very start of March – I started to notice my bird food bin (which lives outside my little cabin) kept being knocked over in the night. At first, I thought it was because of all the storms we were having at the time. But on a still night I was woken up by the sound of the bin lid crashing on the ground and to my delight, saw a Pine Marten helping itself to my bag of peanuts. Over the course of a few weeks it became more and more common until by the end of March this became the norm every night. I began to notice that up to 3 or 4 different Pine Marten were coming during the night and my peanut bill was going up!

Watching the activity quite literally from bed!

It was great to start being able to identify the different Pine Martens as I got to know them and see them behave in different ways. Some of the younger ones were very shy and timid while the older larger two Martens were very greedy and would stick about for longer. I did not mind being woken up most nights when they came as they were a great source of entertainment.

Unfortunately for me, since the middle of summer there has been less Pine Marten action from my cabin due to the abundance of food that they could predate on in the glen. I know that come late autumn they will be back in full force and, fingers crossed, with kits! I’m hoping that from now these furry charismatic creatures will be here to stay at Reindeer House for as long as I am. I feel very lucky and look forward getting to know them even more.

Joe

There’s more to us than reindeer…

Coming to visit us in the Cairngorms again when this is all over? Here’s a blog that’s been adjusted slightly from an old newsletter about the wonderful wildlife that surrounds us here in the Cairngorms:

It’s not just reindeer that you might see here, there’s so much more. Around 25% of the UK’s threatened flora and fauna can be found here, and some of it is very easy to spot. The Red Squirrel is perhaps one of the most iconic animals in Scotland, but there’s no need to search too hard for them at Reindeer House as they are usually to be found on the peanut feeders in our garden or in the reindeer paddocks beside the house. Sometimes people soon forget about the reindeer when the squirrels make an appearance!

Photo by Peter Trimming

Crestie on the feeder. Photo by Hen Robinson

Another bird feeder highlight is the Crested Tits, a much sought after species for bird watchers due to their rarity. And like the squirrels, look no further than our front garden (but only in the winter months)! Every winter we have absurdly good views from our office window, mere feet away. The bird table is also visited by Siskins, Chaffinches, Blue Tits, Great Tits, Coal Tits, Robins, Blackbirds and Dunnocks. Among many other species, Crossbills are to be found in the forests around Reindeer House, and Pine Martens are seen regularly right outside the house at nighttime, much to our delight.

Many visitors to our hill enclosure remark upon the Mallards pottering around amongst the reindeer, a somewhat surprising sight it seems, especially so in the snow. The ducks do have an ulterior motive as they are after the barley in the reindeer feed, arriving every day on schedule to clear up after feeding time! They could well be the best fed ducks in Scotland. Other enclosure visitors are the Snow Bunting flocks in winter, having bred up on the high mountain plateau during the summer; and sometimes we have a pair of curlew in summer residence too.

Snow Bunting in winter plumage

In fact our 1200 acre enclosure on the slopes of the Cairngorms is home to a variety of wildlife all year round, much of it being rather secretive. May expeditions to search for newly born calves at an unsociably early hour result in good views of Black Grouse, displaying right in the middle of the enclosure. However, by the time we take visitors up the hill at 11am the grouse have sensibly retired for the day. The Red Grouse are easier to see, and are a common sight on the reindeer treks in the summer as they nest near our trek routes. Most exciting of the grouse species is the elusive Capercaillie, of which we see a few of each year in the pine forest down near Utsi’s Hut, in the far reaches of the hill enclosure.

A male capercaillie displaying. We more often see the smaller, brown females. Photo copyright: sighmanb

And there’s plenty more. We spend hours out on the Cairngorm plateau in the summer, checking the female reindeer and their calves (if we can find them!), and frequently see the most alpine of the grouse species, the Ptarmigan; and Dotterel, rare migrant waders. Golden Eagles are spotted occasionally too.

Dotterel high up on the mountains in their summer breeding grounds. Photo by Andi Probert

So while our focus is undoubtedly the reindeer, sometimes they do have to share the limelight with other species. Reindeer were originally native to Scotland, and while we will probably never see the likes of bears, wolves and wolverines roaming free here again, visitors to the Cairngorms can catch a glimpse of the past as the reindeer browse the heathery slopes.

Hen

Autumn in the Cairngorm Mountains

Mammals

Reindeer

During the autumn months reindeer are starting to prepare for winter. By October, their summer coat has begun to disappear below a fresh new winter coat. Reindeer winter coat is one of the warmest coats in the animal kingdom, with over 2000 hairs per square inch on their body. About 600 hairs per square inch are hollow allowing air to be trapped between them forming an insulating layer, which can keep help them survive down to 72°C.

Cairn Gorm views

The rutting season is an important time of year for Reindeer bulls. First their velvet strips off their antlers leaving them with solid bone, stained red from the blood supply that was there to help the antlers to grow. Eventually the antlers lose the red stain and their impressive sets are revealed!

Kota during this year’s rutting season

Castrated males don’t lose the velvet from their antlers quite so quickly. This is because the reduction of testosterone doesn’t trigger the response to shed it. This also means that the castrated males get to keep their antlers slightly longer than the bulls. Because of this, castrated males make for the best Christmas reindeer.

Females that are put with the bulls during the rutting season spend the majority of the time with the breeding bull. Calves and yearlings will stay with their mothers during this period too.

Female with her calf and a friend

Red squirrels

The red squirrels are also preparing for winter during the autumn too. They collect stores of nuts and burry them so once winter begins they have a source of food, even when no suitable food is available. The only issue they have is remembering where they buried their store.

Also during the autumn Red Squirrels begin to grow their winter coat. Their winter coat, like reindeer, is thicker than their summer coat, and denser. This allows them to keep warm during the winter. Their ear tufts also become thicker and more prominent.

Pine Martins

A group of pine martins is called “richness”, even though they are skillful climbers they normally hunt on the ground. Pine martens are believed to have come to Britain around 10,500 BC, at the end of the last ice age. They live in woodland habitats and were Britain’s second most common carnivore around 6,500 years ago in Britain and Ireland.

Similar to red squirrels, pine martins do not hibernate. They have thick fur all over there body to keep them warm during the cold winters. Pine Martins are hardy mammals and will eat anything including mushrooms, insects, small mammals such as voles and bird eggs. Being omnivorous allows them to always have a source of food even when certain plants and berries have died off due to the winter frost. They mainly forage or hunt for food at night or late in the evening.

The local bar to the Reindeer Centre is named after this elusive creature, the reason being that several Pine Martins have been spotted outside the bar late in the evening eating the various feed which is left out for the Red Squirrels. (Reindeer herders are also often found at the Pine Marten Bar late in the evening…)

Birds

Osprey

During the autumn Ospreys will start their incredible journey back to Africa, where they travel up to 5000 miles. The female is the first to leave. She leaves the nest and her fledglings in the care of the male who will continue to fish for them until they are able to fend for themselves, once they can the male will set of on the migration. Then finally the young will start their journey.

The mating pair may not see each other over the winter period, but will meet up again the following breeding season back in Scotland or Northern England. Ospreys were driven to extinction in the UK in the 1900’s due to egg collectors, they were also considered a pest due to them eating the salmon and trout.

Ospreys returned for the first time to breed in 1954 to Loch Garten near Aviemore. This was a natural recolonization, but the birds still needed a huge amount of help and protection to breed successfully in the Scottish highlands.

Eventually several pairs of osprey began to breed successfully in more remote parts of Scotland. However, many birds were helped with artificial nest platforms and nest protection watches, and a huge public enthusiasm for the birds helped ensure their survival.

Golden eagle

The golden eagle is the top predator in Scotland. It’s a massive bird of prey that mainly hunts rabbits and mountain hares but will also catch foxes, young deer and large birds like grouse. It can be seen soaring high in the sky in upland areas and remote glens. Golden eagles have large home territories, nesting on rocky cliff faces and in trees where it builds a giant nest or ‘eyrie’. These nests are often used by successive generations to rear their own young. Furthermore, similar to Osprey, Golden eagles pair for life

There are around 400 breeding pairs of Golden Eagles within Scotland and Northern England too. The birds are perfectly adapted to survive the harsh Scottish environment. Their talons can grow up to three inches, along with an amazingly sharp beak makes them perfect hunters. Also their varied diet means that there will always be some sort of prey to hunt.

Ptarmigans

They are exclusively found in the Scottish Highlands. Mature birds eat a diet of seeds, berries, nuts and leaves, while juveniles will also eat invertebrates. During the breeding season, males usually mate with one hen, producing one brood a year of around seven eggs.

You can often find them all year round on top of the highest mountains in the UK, especially on the Cairngorm Plato. Ptarmigans prefer the rocky tops of mountains to the forest environment.

During the autumn months they start to grow in their winter feathers. Eventually they change from brown to a pristine white colour. This helps protect them from predation. Blending into the snowy winter background makes it more difficult for Golden Eagles to hunt the small bird.

Izzy

Bog Blog

One day last summer I was leading Okapi and Ryvita from the Cas flats to the reindeer enclosure. I was just about to cross the burn that is crossed by Utsi bridge further down the hill when with one misplaced step I found myself thigh deep in bog. What followed consisted of much giggling (from both me and the reindeer), a serious struggle to get my leg out and a very wet arm having had to reach down into the bog to retrieve my welly. As a squelched my way to the reindeer enclosure I started thinking about the different plants that grow in a bog, especially the indicator plants that could have helped me avoid my rather soggy fate.

Stuck in a bog

Sphagnum moss

Sphagnum moss is probably the most important plant to look out for. Also known as peat mosses, this group of plants can retain an incredible amount of water (up to 26 times their dry weight). It is so absorbent that it was even used by native North American babies in nappies. This means that standing on this bright green moss (notice it behind me in my bog selfie) will almost always leave you in a similar predicament as I was in. Sphagnum mosses have two types of cells that make up the plant; small living cells and large dead cells. It is the dead cells which have a large water holding capacity. (Disclaimer: if you have no interest in biochemistry then please skip the next sentence or two) Sphagnum mosses are very good at out competing the surrounding plants by carrying out a process called cation exchange, in which nutrients such as potassium and magnesium are taken up and hydrogen ions are released. The increase in concentration of hydrogen ions in the surrounding environment is responsible for making it more acidic and stopping other species from growing there. The acidic conditions along with the layering of the sphagnum produces the peat that we see on the mountains.

Sphagnum

Bog cotton

Bog cotton is a good indicator of a boggy area as its seed head stick up above the ground and warn you of the wet area beneath. Its white cotton-like seed heads can often be seen bobbing in the wind. Unlike regular cotton, bog cotton cannot be weaved into fabric, however in northern Europe it has been used to produce paper, pillows, candle wicks and wound dressings.

Bog Cotton

Bog asphodel

For those of you who have been on the hill trip, you may have seen the yellow spiky flowers of the bog asphodel plant. The Latin name for bog asphodel means ‘bone-breaker’ due to the belief that when sheep eat it then develop brittle bones. However it is more likely that it is correlation rather than causation as sheep eating a low calcium diet are prone to bone weakness and bog asphodel grows in calcium deficient soil. Our reindeer however have no problem getting calcium, as displayed by the wonderful antlers that they grow each year.

Bog Asphodel

Sundew and butterwort

The most vicious of all the plants I have described are these two carnivorous plants. They both survive the harsh environment that they live in by catching insects to eat. Sundew catches insects by sensing their movement and elongating the cells on one edge of the leaf and retracting the cells on the other surface of the leaf causing the leaf to curl around the unsuspecting fly. Butterwort uses a different hunting method, the insects stick to its sticky glandular leaves and are then digested by the plant. If you ask me, the plants up on the hill are not working nearly hard enough to catch the midges this summer.

Sundew and Butterwort

Lotti

Midges

Midges…complete and utter nuisances. That’s what most people tend to say.
Well…I’ve heard quite a few individuals use more colourful language than that, but that’s the gist of most people’s views on this small flying insect that occupies the Highlands. This view is commonly expressed whilst people flap their hands around as if they’re aiming to actually launch off and flee the plague of midges.
In the bible there is reference to a plague of locust but this past week it is the midge numbers that have been of biblical proportions, causing people to look like they have moustaches and tattoos. In the five years that I’ve been reindeer herding last week was by far the worst that I’ve ever seen the midges.
During this past week I also found that the term midge can get lost in translation! We recently had a visitor who complained about being attacked by midgets. It’s amazing the difference one letter in a sentence can make!

Horrible sight
Source: https://www.youtube.com/watch?v=Ox8SwZCvugE

It was during the latest inundation of midge attacks that I found myself asking: Where do these midges even live? Why are they biting us? How long do they live? Well, look no further folks…let’s rattle out some midge facts.
• Midges have a life span of around one month. Although adults are only capable of flight for a short portion of that time.
• Midges lay their eggs in wet soil, bogs, mires and the soggy surrounding landscape.
• In the U.K. there is 2-3 batches of midge eggs per year. The first batch is in May or June depending on warmth and moisture levels. A second occurs in late July or early August. And if the season is a warm one, a third batch can occur in September.
• In the U.K. alone there are more than 500 species of non-biting midges, and more than 150 species of biting midges. Most of these are found in Scotland, however they can also be found in Northern England and Northern Wales.
• Only the female midges bite. The male and female midges survive upon sugary food such as plant nectar. However, the females need a protein rich meal of fresh blood in order to mature their eggs. They get this from both birds and mammals, with the majority of blood coming from cattle, sheep and deer.
• Female midges tend to bite in close proximity to their breeding site and rarely go further than 1km away (cough, cough, Utsi bridge).
• Once they’ve found a blood source, midges emit pheromones and summon all their buddies to come on over, hence the swarming.
• They have short and sharp mandibles to pierce the skin of mammals and then they increase the blood flow via histamines in their saliva. This is what causes the wound to swell afterwards.
• Low light spurs their feeding habits so they’re most active at dawn and dusk.
• It takes a midge five minutes of feeding to become engorged.
• Mild and wet winters usually means a bigger midge season. Moreover, a very cold winter can also mean a bigger midge season. In 2010 the prolonged freezing conditions in Scotland reduced the number of natural predators such as bats and birds, meaning more midges.
• It is estimated that midges cost the Scottish tourism industry around £268 million per year in lost visits.
• On the Isle of Rum, folk lore says that as punishment for improperly burying a body, a gravedigger was stripped, tied to a post and left outside for the midges to feast on. They did kill him, eventually.
• Rumour has it that pomegranate skin, marmite, lavender and charcoal are all deterrents.
• They’re attracted to the CO2 that us animals produce. Some people are more attractive than others due to a combination of specific body odour and temperature. They are also more attracted to dark coloured clothing than light coloured clothing.
• There is a midge forecast, detailing how torrential the midge downpour is across Scotland, which can be located at https://www.smidgeup.com/midge-forecast/.

Close up of the horrible things
Source: https://www.mosi-guard.com/articles/midge-bites-how-to-recognise-midges-treat-bites-and-avoid-both-altogether

So, there you have it. They say knowledge is power, but I’m not sure this knowledge will stop you being attacked by these small critters, but at least it may give you some happiness to know that you’re playing a part in a midge’s life cycle. Bah, who am I kidding? Probably not! But you may get some happiness in knowing that at least you’re not a midge.

Swarm
Source: https://www.visitinvernesslochness.com/blog/the-highland-midge/

References:
https://www.lifesystems.co.uk/news/45-facts-about-the-highland-midge

Reindeer as a Species

On our kids quiz in the Paddocks is the question ‘Name a sub-species of reindeer’, and I notice it’s often the one that people get stuck at (despite the fact that the answers are there on the display boards). I’ve realised over the years however, that this is often down to a basis lack of understanding of a percentage of the population of the concept of species and sub-species, rather than anything else. So therefore, allow me to explain.

As a zoology student (all too many years ago, so bear with me if my science is rusty), the classification of all organic species using a system of ‘taxonomic rank’ was drilled into us. The system still in use today was founded by Swedish botanist Carl Linnaeus in the 16th Century and brought order and clarity to the then chaotic and disorganised way of naming and categorizing all types of life. No wonder I loved learning about taxonomy – lists and organisation? My kinda thing.

Carl Linnaeus (1707 – 1778)

The Linnaean system breaks down all living things into 7 major kingdoms, animals being one and plants another, and then each kingdom is broken down further, into different phyla. Then phyla are broken down once more to the next level, which is class, and the system carries on through order; family, genus and finally species. So reindeer can be categorized as such:

Kingdom: Animalia (Common name: Animals)

Phylum: Chordata (Chordates  – meaning ‘possessing a nerve cord’)

Class: Mammalia (Mammals)

Order: Arteriodactyla (Even-toed hooved mammals)

Family: Cervidae (the Deer family)

Genus: Rangifer

Species: tarandus

 

Biological classification chart

The two part ‘binomial’ name Rangifer tarandus is perhaps more commonly known as a ‘Latin name’, and every species in the world has one. You will be familiar with ours as Homo sapiens, and like humans, reindeer are the only species within their genus, Rangifer. A regular question from visitors is ‘So….how are reindeer different from deer?’ Bizarrely, it can be quite hard explaining to people that reindeer are deer. My usual analogy is to get people to think about lions and tigers. Both obviously cats, so therefore members of the cat family (‘Felidae’), but at the same time both clearly different species from each other. So while reindeer are a member of the deer family, they are a different species from other types of deer. For example, moose, red deer and muntjac – all clearly distinguishable in looks from one another, but crucially also genetically different.

But then, as with most things, it all gets a little more complicated. Not content with 7 major divisions, scientists introduced sub-divisions in order to break down everything further. So now there are, among others, sub-classes, sub-families, sub-genera etc. Arghh! While Rangifer has no sub-genus, there are some subspecies to contend with, and this is the relevant info that we hope people will track down in our Paddocks. All seven subspecies of reindeer and caribou are all still Rangifer tarandus, so effectively all genetically the same animal, but a subspecies is shown by adding a third name after the binomial. Just to clarify too, reindeer and caribou are the same animal, but reindeer are the domesticated version of caribou. The differences are also geographical, in that reindeer are found in Europe and Asia, while caribou are found in North America and Greenland.

So back to our seven subspecies. We have:

Eurasian Tundra reindeer (Rangifer tarandus tarandus): Open-ground dwelling subspecies, which the majority of all domesticated reindeer belong to, including ours.

Our big bull Crann, a ‘tundra reindeer’

Eurasian Forest reindeer (Rangifer tarandus fennicus): Boreal forest dwelling subspecies, typically taller than tundra reindeer.

Forest reindeer

Svalbard reindeer (Rangifer tarandus platyrhynchus): Smallest subspecies, endemic to the arctic archipelago of the Svalbard islands. Short legged!

Svalbard reindeer

Barren-ground caribou (Rangifer tarandus groenlandicus): Migratory subspecies of open ground. The most similar of the caribous to our tundra reindeer.

Barren-ground caribou

North American woodland caribou (Rangifer tarandus caribou): Largest caribou subspecies, often darker in colour. As the name suggests, they live in forests, and generally don’t migrate.

Woodland caribou Copyright Paul Sutherland

Peary caribou (Rangifer tarandus pearyi): Smallest of the caribou subspecies.

Peary Caribou Copyright Trent University 

Alaskan or Porcupine caribou (Rangifer tarandus granti): Migratory subspecies most closely resembling the barren-ground caribou, and named after the Porcupine river, which runs through much of their range. The longest migrating land mammal on Earth.

Porcupine caribou

There have been two other subspecies in the past but these have now died out – the East Greenland Caribou and the Queen Charlotte Island Caribou.

So there you go, a brief taxonomy lesson, and congratulations to anyone who has stuck with me, as well as apologies for some slight over-simplifications for any scientists amongst you. Hopefully you’ll have all learnt something though – I’m a big believer of sneaking in educational blogs among the pretty pictures and funny stories we often post! And if it’s all too much and you’d just prefer something a bit more light-hearted, head off and google pictures of Svalbard reindeer. You’ll not be disappointed.

Hen

Attack of the flying beasts

First off, I’m not talking about the reindeer in that heading. Reindeer only fly at Christmas time after Santa has given them the magic powder and our lovely reindeer don’t attack.

I am of course talking about the flying mini beasts – flies, bugs and, the worst of the worst, midges. Scotland wouldn’t be Scotland without those little terrors, and they are a sign that summer has finally arrived here in Cairngorm, but they aren’t my friends.

No one here likes the midge, including the reindeer. With the heat rising above 20°C and them still having some of their winter coat, our boys are feeling the heat. In hot weather we often give them access to the shed to hide from the heat – you’d be amazed how many come running out at feeding time.

They are also bothered by the flies and midges, but there’s not much we can do there. As much as I’d like to eradicate midge for both my own and the reindeer’s comfort, they are an important food source for birds, toads and frogs, and bats.

Our boys cope with the midges fairly well; in the Paddocks they hide under our shelter shed and up on the hill avoid stagnant pools where midges breed and shake to get rid of the biting buggers. Sometimes it’s like watching a little reindeer dance: they stomp their back foot a few times, then the other, a little shake, a few more stomps, and then if the midges are really ferocious, they’ll burst off in a sprint, jumping and kicking the air. It’s quite funny to watch!

We also spotted Oryx doing something a bit odd. It was the end of a Trip, and we were heading to the gate to leave the enclosure. A few boys followed us, no doubt thinking there’d be more food. There’s a large mud bath just at the gate, which usually the reindeer don’t bother with, but this time Oryx got into the big puddle and just stood there. He seemed pretty content, so he was left to his own devices while Fran and I did some poo picking (the glamorous lives we lead). Eventually he decided his spa treatment was finished and got out of the mud bath. He looked ridiculous with mud socks up to his ankles, but he seemed pretty happy with himself.

It’s known that red deer wallow, or bathe in mud, but the cause for this is still unknown. Some think it may be to reduce ectoparasites, while others believe it is to cool down. I’m not sure it’s ever been recorded in reindeer before (a quick Google search didn’t come up with much) but I think Oryx may have been trying to avoid the midges biting at his legs. Either that or he fancied a quick mud treatment at the ‘spa de le Cairngorm’.

Oryx in mud

Oryx in mud 2

Calling all deer..

Deer in general are fairly quiet animals, uttering little or no noise in their daily lives. However there are two quite vocal times of year, in the spring when female deer calve and in the autumn when the males are competing for the breeding females.

In spring time whether it is a Red deer hind, a Roe doe or Reindeer cow they will call softly to their young when they are looking for them. In May time when our reindeer calves are born the mothers can get quite agitated if their young calves are not right beside them, grunting incessantly to call them back. Red deer hinds ‘mew’ to their young calves and a Roe doe gives a low whistle when calling her young.

red deer hind
A Red deer hind with her young. Photo from Wikipedia Commons

But the call of the rutting males can be quite different and is sometimes meant to warn off competing males and signal ‘how big and tough’ they are. At this time of year in the forests and glens of Scotland the red deer are in full rut and they make a fabulous bellowing noise rather similar to the roar of a lion. There have been scientific studies on the meaning of bellowing and it has been proven that the more times a stag roars at one session the more likely he is to be a successful breeding male.

Frontal view of red deer stag (Cervus elaphus) roaring during the rut, mouth open, in England
A Red deer stag bellowing. Photo from Wikipedia Commons.

However Reindeer (and Caribou) do not bellow like red deer but instead ‘grunt’ rather like a female calling to her calf, but more ‘gutteral’. And the grunting only really takes place when a bull is chasing after a cow. It is not a loud noise and certainly is not a threatening call in the same way as the red deer bellowing.

Bulls spar autumn04
A tussel will often follow reindeer grunting, with the winner going on to breed with the females.

Roe buck, patrolling his territory will bark (like a dog) to challenge other bucks who dare to step a foot in his domain and Fallow bucks are different again, issuing a husky, rolling grunt in an attempt to attract the does and warn off other prospective males.

roe buck
A Roe deer buck with velvety antlers, just before the rut. Photo from Geograph.

Persian_Fallow_Deer_1
The grunt of a Persian Fallow deer buck, to warn off competitors. Photo from Wikipedia Commons.

The non-native Sika deer, which were introduced into GB at the turn of the last century, have a characteristic kind of whistle, which turns into a high-pitched scream during the rut.

Sika Deer Roe Deer Hirsch Wild Free Deer Red Deer
The more delicate looking of deer species in rutting season, a male Fallow deer. Photo from Max Pixel.

So there is a vast variation of noises from grunts to screams, even among the deer found here in Great Britain. So if you go out in the countryside at certain times in the year and hear something unusual, don’t take flight, it will probably be a female and young calf, or else a harmless male deer in full flow because it’s the rutting season..

Tilly

 

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