Tag Archives: snow

NORTHERN GOSHAWK

 

HUNTING IN WINTER

533-19-8From a perch in a stand of stunted black spruce, a well camouflaged immature northern goshawk stalks its prey.   Their short, wide wings and long tail give it both speed and manoeuverability to pursue prey in the forest. No small bird or mammal is safe from a sudden ambush, but this winter the large accipiters  key on snowshoe hares.

28-19-5The snowshoe hare has perfected the art of camouflage, but as an extra defense against the  goshawks, they often use snow burrows.  But the snowshoe hares’ best defense against the sudden attacks by goshawks is its nocturnal behavior.

533-19-1An adult northern goshawk feeds on a snowshoe hare.

533-19-3As I photographed a snowshoe hare this immature northern goshawk suddenly appeared out of the blue shadows and killed my photo subject.  She mantles her prey with powerful wings.

533-19-9Often northern goshawks show little fear of humans.  When I approached it flew a few yards away but quickly returned to its prey.  The goshawk fed for nearly an hour leaving only the feet, fur, guts, head and large bones.

28-19-6While the snowshoe hare population is near its peak this year, their primary predators populations (northern goshawk, lynx, coyote and great horned owl) are also peaking.  And this heavy predation will inevitably cause the next snowshoe hare population crash.

ALONE WITH THE NORTHERN GOSHAWK

GOS_011For months, over two nesting seasons I spent nearly every day in the company of northern goshawks.  Slowly they would reveal their secret lives.

533-48-1High in the canopy a female tends to her day old chicks.

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After the chicks hatch,  northern goshawks become very aggressive at their nests.  By visiting the nesting territory on a daily basis, starting early in the nesting season I seemed to have gained the trust of the goshawks.  By building my blind near their nest under the cover of darkness, wearing the same clothes everyday and never disturbing the nest, I was able to climb into my photo blind or walk around the forest below unmolested.

 

SQUIRREL SMARTS

The great female goshawk rose up from her eggs and stepped to the edge of her three-foot wide nest.  Eyes of blood locked onto her target.  Diving headfirst off the nest, she pumped her wings quickly accelerating to attack speed.  Long tail feathers flared and pivot, sending the goshawk speeding around the base of a large douglas fir and crashing into the understory.  Squealing in terror, a red squirrel jumped to the trunk and instinctively darted to the opposite side, sticking like velcro to the rough, dry bark, then squirrel shot up the trunk into the canopy.  Again the goshawk attacked.  Going up, the squirrel was faster but  on the way back down the goshawk closed the distance.

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Among the thick branches of the canopy the squirrel had the edge, but not by much.  Using feet, bill and wings, the goshawk literally swam through the boughs.  Desperate to lose the hawk, the squirrel spiraled up the nest tree and right over those precious eggs, before jumping to an  adjacent tree.  The squirrel somehow missed being snagged by those talons, utilizing unearthly tricks of speed and anti-gravity.  I could keep track of the chase through the various observation and lens slits cut into the photo blind, but the action was much too quick and hard to follow so I missed getting any photos.  It was inevitable I guess, when I felt the squirrel coming up my blind tree, the gos riding his wind.  A vision of the squirrel taking refuge up my pant leg was suddenly a painful possibility.  Just as the squirrel shot inside the blind I yelled and smacked the side of the blind.  Luck was cheap that June morning.  After a couple of quick laps around the legs of me and my tripod, the squirrel dashed back out and jumped to the next tree about five feet away.

533-268-2Slamming through the branches with little regard for its plumage, the gos didn’t let up.  But the squirrel had a little luck of his own stashed away.  Running headfirst down the trunk, the squirrel made an Olympic jump 25 feet from the ground.  Bouncing off the forest floor the squirrel made for thicker scenery.  After orbiting several more big trees and an amazing sling-shot the squirrel made it to a thick jungle of downfall.  For the next 30 minutes, the goshawk perched 20 feet below her nest and preened.  The squirrel barked, chattered and buzzed and told the world what he thought of goshawks nesting in his five acres.

533-163-1Three weeks earlier, the goshawk had calmly sat on her eggs while this same squirrel climbed the nest tree, dug into the bottom of the nest to find and nibble on mushrooms.  I guess it seemed like the perfect place to dry mushrooms.

 

 

 

HAWK OWLS, HOME HUNTING

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A pair of northern hawk owls check out the view from atop a prospective nesting cavity. Hawk owls, like other owls, do not build a nest but use natural cavities and bowled out snags.  The male establishes a territory that includes potential nests sites, but it seems to be the female who makes the final choice of snags.

northern hawk owl sits hidden on its nest, Alaska

After settling on another snag, the female incubates her eggs.  Hawk owls nest early, usually in late April and will endure winter conditions.

Check out my photo story about northern hawk owls in the May 2018 issue of RANGER RICK,  Just click the link below.

NORTHERN NESTERS

 

HUNGRY HARES

 

28-18-35Very few birch still have unshed leaves during the long Alaskan winter and most are just too high for the hares to reach.  But this winter extra heavy snows, more than three feet deep in places, brought a limited amount of these prefered leaves within reach of the hares.

28-18-31Alder is on a snowshoes “short list” of favorite winter foods.  Of course leaves and small branches are prefered.

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28-18-3This snowshoe hare feeds on the bark of alpine birch.  Hares often dig deep into the snow to reach the small twigs of blueberry.  And, the large number of willow species found in these northern boreal forests are another important winter food.

18-63Snowshoe at sunset checks out a birch sapling.

 

RAMS IN RUT

All summer and fall dall rams have shunned the groups of ewes and lambs.  The rams prefer the high country where they hang out in small bachelor bands.  With the approach of winter their association begins to fray as they begin to sort out a pecking order.  The rams stand in tight groups, displaying their massive curls trying to intimidate. They kick, growl, shove, and finally engage in dramatic displays of head butting.   For the most part dominance has been been sorted out when they join the herds of ewes and lambs already on the winter range.14-09-59Dall rams Continue reading

BACKYARD SAFARI PART 3

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Red squirrel has cached black spruce cones in an old flicker hole.

RED SQUIRREL

32-15-30I am still on my backyard safari.  This is where I do some of my favorite work.  I have had professional photographers scoff at the mere suggestion of doing in-depth work with such “insignificant” species as the red squirrels, voles and the like. But I happen to enjoy photographing all species of wildlife including red squirrels.  The idea of a backyard safari is to give one the incentive to compile a complete coverage of the wildlife in your immediate surroundings as well as gaining experience turning photographic potential into great photographs.

Red squirrel pry the scales off a spruce cone and feeds on the tiny seeds.

32-15-22Red squirrel jumping.

The red squirrel jumping straight on is a tough one.  I found a place where the squirrel routinely jumps form one branch to another.  The distance is just over three feet and it takes less than a second.  The problem lies in the tiny amount of depth of field with the 560 mm telephoto lens.  I use a Nikon 200-400 lens with a 1.4 tele-extender and pre-focus at about 4 meters.  There is less than one inch that will be in sharp focus.  I manage to get off about three frames each time the squirrel jumps and only about one in fifty photos will be in focus.  What that boils down to is about one photo every four days will be a keeper.  I could increase the percent of successful shots by adding a trigger which trips the shutter as the squirrel crosses a beam of infra-red light.  Maybe next week.

TRACKS

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One of the few sets of snowshoe hare tracks I have seen in the backyard this winter.  They are currently at the low-end of their population cycle.

BOREAL OWL

The male boreal owl is still calling from the flicker holes but not every night.  I suspect he is also singing his territorial songs from other possible nesting sites in the area.

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The male boreal owl begins his territorial songs just before dark.

AURORA BOREALIS

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The aurora borealis usually begins with a band of green, glowing light in the northeast.

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Aurora begins to dance.

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