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Nature Reflections |
January 12, 2006
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Archive Gray Merriam |
Ghostly Visitor by Jean Griffin What
was that blur of white that zoomed across my lawn? It was the Snowshoe
or Varying Hare. Not often seen in the daytime, this one was in its
winter whites while the ground was still not covered by snow, and was
therefore very visible. What had made it take what for it was a
dangerous junket? Had it been disturbed from its daytime hideout, and
had to make a quick getaway from a possible predator? I probably would
not have seen this late fall visitor, already in its warm, white coat
and prepared for the coming winter, except for the contrast with the
dark ground. Now
with the snow on the ground I keep watching for this elusive animal,
but while I see many tracks, most obviously made during the night, I
have not seen the animal. Usually the tracks come from an area of alder
bushes, come loping across my driveway, and either around my garage, or
sometimes up one or the other side of my house. The way the tracks are
made indicates the animal has come from and has returned to the
protection of cover. The tracks have at times ended under my porch,
which is close to the bird feeders, and I wonder if the owner is
interested in the seeds that have dropped to the ground, though my
sources indicate a winter diet of conifer buds and alder and willow
bark. This
animal is superbly equipped for the winter, not only by its white
camouflage, but also by its feet - large hindfeet with well-furred
soles - its snowshoes! Widely spread toes and the extra fur the feet
have in winter give it an advantage in snow over predators that may be
slowed by deep snow. This hare will also elude predators with bounds of
several meters, and speeds of up to 50 kph, switching direction
instantly or by running in circles, sometimes returning close to the
area where it was disturbed. While
its winter whites do not hide his black eyes and ear tips, it is an
effective strategy, but as the daylight lengthens in spring the white
coat will be shed gradually and its summer browns will appear. This
molt is not related to the snow cover, but rather by lengthening
daylight and if there is a late snowfall, the animal may be quite
conspicuous, and seems to instinctively know that it should remain
inactive, hiding in suitable cover. There will be two or three litters
per year of one to six young, which can run within hours of being born
and the doe will nurse the young for about a month. It
has a short lifespan, with many predators such as the Great Horned Owl,
the Canada Lynx, Bobcat, Mink, foxes and coyotes, and as well has a
cyclic population, which may be very plentiful one year but plummet
dramatically the next. These cycles seem to occur every nine to ten
years, and the causes are not fully understood. So the animal or
animals that have been making the tracks near my house may not be here
next winter - I will keep watching! Observations: There was a Northern Shrike on Armstrong Road on December 30. Share your observations: call Jean at 268-2518 or email currawong13@sympatico.ca
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