Fall In to Autumn

Sep 19, 2020 | Moose, Muskox, Wildlife | 0 comments

5 minute read – 
Autumn is a season of change! It’s the bridge which helps us transition from summer towards winter. What a beautiful bridge it is, with leaves blazing colour in vibrant hues of red, orange and yellow. Fireweed has flowered and the leaves are crimson. Against this backdrop the first snows fall on the mountaintops.

Birds begin their migration back to their southern overwintering grounds, after a summer spent mating, nesting, rearing young, and eating well. Before we see the V’s flying overhead, we often hear them honking and calling to each other.

In the world of ungulates, it is the time of the rut. Antlered animals have finished growing this season’s antlers; their velvet has sloughed off and now they sport their hardened, ready-to-duel finery. We can see and hear as the males clash, challenging each other for the right to breed the females. Elk stags bugle, bull moose softly grunt – calling to interested females in the area and warning off competing males.

Watson, in the foreground, has shed the velvet on his first year’s full antler growth.

Those with horns are also clashing. This looks less like a duel and more like a train crash. Thinhorn Mountain Sheep rams, both Stone and Dall subspecies, run at each other and smash heavy horns together – the echo of this collision ricochets like a rifle shot. Muskox bulls have been rumbling since early August, chasing each other, establishing dominance and finally banging horns as they work to impress the females for breeding rights.
We begin to notice a lack of Arctic Ground Squirrel activity. We no longer hear the constant shrill warnings as nearby predators hunt; where are these industrious rodents? Hibernation comes early – females are already underground for the long winter ahead, and the last of the males aboveground continue to harvest and stockpile their midden, into early October. Predators such as Red Foxes can be seen traveling from one burrow-entrance to another…..looking for a disappearing meal of ground squirrel which used to be in abundance. Soon they’ll be gone completely, hibernating through the winter, under a thick layer of blanketing snow – but not just yet.

Autumn means hibernation is coming.  We’ve noticed a lessening of Arctic Ground Squirrel activity at Yukon Wildlife Preserve.

Humans are adding clothing layers, finding sweaters, mitts and toques in storage. We need these warm additions on the crisp, cold autumn mornings. Afternoon sunshine heats up; we turn our faces to the sun and shed those layers – it’s not winter yet! So too are the animals growing coats of winter fur, wool and hair. Mountain goats have spent all summer shedding last winter’s wool; almost immediately it’s time to grow in this winter’s layer of hair. Arctic Foxes are beginning to add some white to their brown and grey camouflage. They not only change colour with their winter fur, they also add seeming bulk. All those layers of white fluffy fur help them stay warm, maintain body core temperature and thrive in the harsh winter environment of the Far North.
Enjoying this short season is highly recommended – there’s nothing as seasonally relevant or celebratory as jumping into a pile of autumnal leaves. Cranberries are ripening, harvesting continues. Underneath the beauty of the changing season, there is a sense of urgency. Whether we are human or animal, we know winter is coming, and while it’s not here yet, time and opportunity are limited to eat, put enough weight on, or store food to survive the coming months.

Summer is over, the cycle continues. Autumn is the clear signal to prepare for what’s ahead. Fall in to Autumn; experience the sights and sounds with enjoyment, wherever you are.

Julie Kerr

Julie Kerr

Visitor Services Coordinator

Julie is a Registered Veterinary Technologist, living and working in Whitehorse since 2012. She joined the team in May 2018. She is passionate about wildlife, nature and living in a conscious manner with both. Her free time is spent outdoors observing wild animals and ecosystems; her connection to the natural world around her brings great joy – joy she loves to share with anyone interested. Honestly? Work and life blend rather seamlessly.

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