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Wednesday, 27 February 2013

Deer Family of British Columbia: WHITETAIL DEER


Whitetail Deer, Odocoileus virginianus is a smaller cousin to Mule Deer, Odocoileus hemionus. While mule deer inhabit the Western, more mountainous parts of  North America, whitetail deer have spread throughout the entire North American and most of  South American continents thus becoming the most widely distributed ungulate species of the Western hemisphere. And while mule deer got their common name from the size of their ears, the whitetails owe it to the wide, fluffy tail that is carried upright when they feel scared or fleeing from danger. (Virginianus in their Latin name comes from being firstly described in Virginia)
The tail has a bright-white underside that is strikingly visible, especially in low-light conditions.







The white tail flag, along with other visual, vocal and olfactory means, is an part of  deer communication.

Whitetails have a language of their own - snorting, hissing and whistling sounds that they used differently in different situations.

Their scent glands, although less prominent than those of the mule deer,
play an important part as well as does their body language.






I came upon this doe and her fawn at dusk while kayaking Kootenay River. Once she figured out that I could pose a danger she gave out the typical deer snort and both of them took off.  The light was already low and their coats quickly blended into the surroundings. But their white tails shone for a while form the darkness of the forest making each one aware where the other was going.













When threatened, the whitetails take off with an elegant gallop of a race horse but when they are really scared they tend to gain advantage by making huge leaps, preferably down the hill, gaining advantage against their pursuers.
Seeing them to flee like that, at a neck-breaking pace, jumping over bushes and broken trees several meters far and couple meters high into the unknown terrain, down the hill,  always makes me wonder how come, that they do not break their delicate ankles and knees.





A small kayak on a quiet body of water  at dusk or dawn   can work wonders for a nature observer. As long as there are no sudden movements the animals do not perceive the kayak and its cargo as a threat.  
I usually set up a tripod inside my little boat (challenging, but the times of my steady-photo-hand  have vanished a long time ago). To manoeuvre between the tripod and the paddle takes some practice and more than an occasional prayer but for the most, the setup works pretty well .






The only trouble is that the vegetation can obscure the view. Nevertheless, I doubt that otherwise I would be able to get close to this buck who took up its residence among the dense bushes on a very steep river bank. He would hear and smell me way before I would ever be aware of its presence. Then he would sneak away, hide in the bush and watch me to stumble by.


The mule deer are "jumpers". Whitetails are "hiders". They are amazingly good at hiding in the underbrush and sneaking quietly away - unnoticed.


They are also much less social than mule deer and prefer to travel alone (that applies doubly for the males during the summer months.)


Just like the mule deer, the whitetails are more gray in the winter, their air-filled hair providing insulation from cold and also helping them to stand out less in the bleak winter weather.
In the summer they are more rusty brown.




Does are bred in the Fall, the fawns are born some six months later, usually May or June. When the fawns are born they can walk within a very short time. Yet, their Mom "park" them in a safe place where they lie still, their speckled bodies blending into the shade dappled undergrowth. They are nearly scentless; that making it difficult for predators to pinpoint their location. On the top of that, they do not eliminate any bodily wastes until a few weeks later - Mom then ingests everything further lowering the possibility of detection by the predators.



There is usually one fawn in tho doe's first pregnancy, the following might lead to two or rarely three young. The fawns stay speckled for about six months - they get their new one-colored coat just in time for the winter.
Last summer I sat in my kayak, parked in the dense mat of underwater vegetation by the edge of the river, silently enjoying the sunset, and the peaceful time on the river. 

Soundlessly, the trio below walked out of the forest just a few meters away from me - way too close for my long lens to focus. Argggh. I had to move - slightly - to be able to re-adjust the settings. The twins seemed to enjoy my company but Mom just stomped her foot and all of them slid back into the darkness of the ravine.


 Any north American country gardener can tell you that the whitetail deer like to eat shrubs! And things in the garden - flowers, veggies, even tomato plants! Wonderful in the evening - gone by dawn! We used to groan and say: "Why? There are grasses everywhere! Why do they have to destroy the gardens?"

The answer is fairly simple. Yes, they will eat grass but that is not their main supply of nutrients. They have GREAT cravings for salt - perhaps it has something to do with them being ruminants and needing to support all those bacteria in their complex stomachs.
I watched this deer for several evenings - every day after the sunset he walked out of the woods and took a very long walk down to the highway where salt from the winter road accumulated in the swamp.


In any case - the salts and other nutrients they need are not in the grasses - they are in buds and twigs and leaves of our precious garden trees (and the wild ones of course)! In cedar hedges especially!
All we can do to keep them away is to build a nice tall fence! (No link here - just type in "deer fence" and see how many sites you will get. Proof enough.)



So there we have it - Odocoileus virginianus - the Americas' most hunted, yet the most abundant deer. 


Hiding in shadows, thriving in cleared lands and cultivated fields. Adjusting to people, their gardens, dogs, radios, their parks, even their cities. 
Enjoying the demise of their main predators like wolves and cougars, increasing in numbers year after year. 

Cursed and cherished at the same time, taking the lowlands, leaving the higher elevations to the mule deer. 
Watching us from the shadows and, thankfully, most likely to stay with us for a very long time to come.









Friday, 22 February 2013

Deer Family of British Columbia: MULE DEER



Mule Deer, Odocoileus hemionus, most likely obtained their common name from the very large ears that reminded people of ears on a mule. The ears can turn independently in different direction, funneling the sounds into the sensitive hearing system. The very first indication of danger can be obtained by capturing the faintest sounds from far away.



Their winter coat is grayish-brown with white throat, rump and underbelly patches.
They have a narrow tail with a black tip and, unlike the other common species of BC deer, the Whitetail, the mule deer do not carry their tail upright when running.
Actually, when they sense danger, they more jump than run. Their stiff legged, jumping can be quite entertaining to watch. When sensing danger they jump with all four feet up in the air at the same time.





Their escape route usually leads up a hill rather than straight ahead or down. Because they are the "jumping" deer, it is easier for them to outrun (and out-kick) their predators by going UP.
This little one doesn't quite know this - he is probably still only practicing in his
"Jumping 101" course.

I am talking about our "mountain"  dwelling mule deer. Their strategies could be different in other environments that they also inhabit - chaparral, semi-desert, brush or woods.









Oakmoss lichen
Evernia prunastri
Common Witch's Hair
Alectoria sarmentosa
During the winter they forage on small branches, frozen plants, mosses and lichens.

In some locations they luck out and find 
a feeding station or join cattle in farmers' fields.
There the mule deer can form large groups, especially in the winter.


By springtime they find plenty of other foods; young twigs, buds, leaves and grasses. 





One of the numerous BC moss species





Large Mule Deer family relaxing by Princeton, BC


By summer, the mule deer shed their grizzled hair and become more reddish-brown. Hair in the deer's coat is quite buoyant - all deer are excellent swimmers.


Mule Deer belong to the Deer Family, which means that the males have antlers, bony projections (unlike horns - see the Bighorn Sheep blog). Only male mule deer posses the antlers; they use them to fight the other males (bucks) and win a small harem of females (does). 


This happens during the fall months from about October to December. the bucks shed their antlers during January - February and start growing new ones in Spring.
The babies (fawns) are born in May or June.



Last spring I was kayaking the Kootenay River when I saw this doe just about ready to give birth. She was on a high bank not paying much attention to my camera and I. Unfortunately the water is quite fast at this time of the year, it turned my unsteady vessel in all directions making photography near to impossible. At the end I just paddled away, having no idea how her story has ended.


In any case, I like to believe that a little fawn, just like the one below, became her cheerful companion and that he/she survived until the adulthood. 
Only about 70 percent of young deer make it past the first year of their lives. 

Princeton, BC

Mule deer are most active in the mornings and in the evenings and they come out from their hiding places sometimes carelessly and in large numbers. They can cause hazardous situations on the roads - where on has crossed several others might be ready run across. 

Rock Creek, BC 
Manning Park, BC

It seems that they have adapted to most of the British Columbia's environments and that, as we hunt their predators for trophies (still???) and/or deprive them (the predators) of habitat, the mule deer numbers are on the rise. 


Here are two things that I have learned by writing this entry:


ONE
Mule deer have more and larger scent glands than any other deer in this part of the world. I am guessing that their way of life - traveling through dense forests and bushy areas - might have something to do with that.  Maybe there are other reasons that I still do not know about. True enough that even the human can smell a deer on the trail.



TWO
Just couldn't help it. This guy really makes me think that way.








Sunday, 17 February 2013

More About British Columbia's OWLS



When, two weeks ago, the little Pygmy Owl landed on the topmost branch of our Douglas Fir I realized that there was a very similar photo of its cousin, Northern Hawk Owl in my older files. I decided to put the two together, trying to scale the sizes the best I could using the Adobe Photoshop CS4 
(I know, it is an older version but my CS4 and I have been together for a while and to part with such a great friend for a new fling? Hard.)
Since the birds sat on the same tree it was a fun job and I really like the result. They look so cozy together; never mind that the bigger one would love to have the little guy for breakfast any time.



I then dug out the other owl photos and tried to scale them according to the numbers that other people published in Wikipedia. Great fun although I am not sure how accurate I am - in any case we get an idea.
 (And I believe that I am close)

Same design and function in many different sizes. Whoooo said that life was boring?





Of course there are many more owl species in British Columbia. One day I hope to add more images to this small collection. For now, it is just great to know that they are there.

Friday, 15 February 2013

BIGHORN SHEEP








Bighorn Sheep, Ovis canadensis, lives in the western parts of Canada and USA.


It is February and the bighorns are still roaming the mountains together. Males, females and young, all  in one big group for the winter. It is easier to survive the cold months and  to evade predators in 


All members of this family have horns, permanent structures that grow from bony projections on the head. (Sheep, goats and antelopes have horns. Elk, deer and moose have bony antlers that are being shed each winter. Right Dad? My Dad would never forgive me if I called an antler a horn. That would have been the end of our relationship. Just kidding about the relationship.)


Male's massive horns are a symbol of his rank, bigger the horns more dominant the ram. They are tightly curled and might weigh as much as his entire skeletal system. Poor guy to haul this stuff about for all his life so he can bang heads with the other rams for the chance to procreate. For the CHANCE!





Horns are made mostly of keratin, (protein that forms human hair and nails is also keratin). Keratin is light-weight, elastic, strong and durable and the body is continually adding new layers to the existing ones for the most of the year. The growth stops in the fall and the cessation in the annual growth is clearly visible on the horn - a deeper and darker ring develops on the horns each winter marking the period of no-slow growth.  Those who are not as easily confused as I , can count the rings and tell the ram's age.


Ram's skull is reinforced by extra bones and the tendons of his neck are extremely massive. All this is needed for the protection of the brain and for the absorption of all those nasty blows during the rams' butting jousts. I will never forget the first time we heard those pistol-like sounds that echoed throughout Alberta mountains. We were in a truck driving at 100 km/hr and the sound of fighting rams was clearly audible inside the cabin although the windows were closed.


It is only February but his guy is probably practicing for the next  mating season in October, 
some 8 months away. 
Since all the ewes have mated in the fall and are now pregnant, the trees take the frustration, there were quite a few semi-naked trunks around at this location when we were there.


Females have smaller horns that stop growing after about 4 years.
They are handy for a bit of protection and also for establishing the relationship between the females. 
They do not butt heads like the guys, poking and prodding is a more feminine way to deal with ranking.


All young (born in May-June) stay with the family for the first two to four years of age. 
Eventually, usually after the females give birth, the young males will leave the band with the older rams to roam'n learn.


When Spring arrives, the matriarch of the group will lead the "girl" group to higher grounds in the mountains. She will choose a rocky terrain with steep cliffs where the sheep can find protection from predators.



 

The groups will disperse, the females will be taking care of the newborn and the young while the males of age will wonder off.



They (the boys) will travel together until October; looking for green pastures trying to grow strong,
practicing their sheep-martial arts and establishing their dominance over the other males.


They might even pause their roaming to have a look at the boy-toys in the local marina.





Or maybe not.


In any case, when traveling the Kootenay country, please always drive with care. 
It is not the humans who have the right of the way here.
 And that is the greatest thing about living in this part of the world.