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2 beaver kits grooming |
All of the beavers that were with us after the June dam collapse remain
with us today and they continue to work on their dams as well as the lodge at
Secret Pond. The 4 new kits are now seen daily and their interactions with each
other and the 3 adults continue to be of interest.
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Julia and all 4 of this year's kits feeding on Aspen leaves |
A survey of potential beaver habitat located up to 1.5 miles
downstream from Secret Pond has revealed no sign of beaver activity, and casts
some doubt on the possibility that the colony’s 4 missing adult beavers managed
to survive and have made their home somewhere else. Still, it’s important to
remember that beavers can travel a significant distance overland, and it’s
conceivable that some or all of the missing individuals have come upon a
spring-fed wetland or even part of a tributary unconnected to their original
stream.
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For the first time in years, Julia drags a tree back to the pond |
With the apparent loss of May Apple, the colony's patriarch and
main provider, the job of food collecting has passed to his 2-year old son,
Blueberry, and also to Julia, the colony's matriarch. They don't exactly have
the job down yet, but they've been steadily improving.
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Beavers venture up on the land |
At first Blueberry kept
coming back with boughs of Tartarian Honeysuckle –a ubiquitous alien bush that
beavers generally regard as inedible. Bringing willow or poplar would've been
considered to be more helpful, but Blueberry has a “thing” about willow. About
a year ago he mounted a one beaver protest against this particular menu item by
taking May Apple's newly collected Pussy Willow boughs and unceremoniously
pitching them over the dam. Now, necessity is making Blueberry overcome his finicky
ways, and most recently he has been observed retrieving willow saplings and even
eating them.
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Sarah's Pond continues its transformation into a grassy meadow |
It had been a while since Julia has had to venture into the
sapling grove –probably at least 2 years, but the other day I happened to see
her accompanying Blueberry as he traveled away from the ponds and up to a place
where some Aspen Trees still grow. Their aim was to gnaw down a choice specimen
and then haul as much as they could overland and at least one hundred yards
back to Secret Pond.
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The top of the old dam sprouts many flowers - Blue Vervain, Joe-Pye-Weed and Boneset |
Meanwhile, the antics of the young kits back at Secret pond
include shoving matches, walking and riding on top of older siblings and their
mother, and most surprisingly, tree climbing. Beavers are not generally known
for their tree climbing ability, but if a tree trunk is properly aligned, they
might just attempt to scramble up. And this is exactly what one of the kits
did. Since the tree turned out to be a Black Willow, their were plenty of small
branches sprouting from the trunk, and so the kit's initiative was rewarded
with a snack.
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A beaver kit stands on a tree trunk and reaches out for some willow leaves |
On land beavers are fairly awkward appearing animals, but in the
tree, the little kit looked surprisingly at home. He stood up on a wide branch
to reach some leaves –and this made him look ever so slightly like a Koala
Bear. When he was finished, he turned around and quite confidently walked back
down the branch and plunged back into the pond.
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A beaver kit having a slice of apple |
During the first half of the summer, dry conditions and high
temperatures around the nature preserve have attracted more animals than normal
down to the beaver ponds as they sought relief. Songbirds were coming to bathe
and even deer came to wade in the water and feed on submerged plants.
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A large part of Morton's Pond is now covered with mounds of tall grass |
A few sandpiper types have shown up at the remains of the main
pond. The Solitary Sandpiper comes daily to probe the mud alongside the deep
stream channels. Robins, Goldfinch and Bluebirds also frequent the mud flats as
they transform into a meadow. Definitely, the Robins and had an easier time
pulling worms out of the mud than they did probing the baked ground of the
upland fields.
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A juvenile Eastern Bluebird looks for insect prey to pounce on |
A small flock of juvenile Bluebirds were more interested in
working the parched and grassless parts of the old pond bed. Here, without
obstruction, they could easily see their insect prey moving. Much like a
Kestrel, the bluebirds frequently dive down on their prey from a high perch.
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Square-stemmed Monkey Flower grows in the beaver meadows |
The Goldfinches seem to be most interested in pulling up strands
of algae along the water’s edge. In this activity the goldfinch is alone, for
no other bird species seems interested in extracting food from this slimy
material.
Aspirin is acetysalicilic acid, a synthetic chemical modeled on compounds called salicates originally found in the bark of Willows that reduce fever, inflamation, and pain.Tn Tree Farm Nursery
ReplyDeleteI guess since most of the trees that beavers consume the bark from are members of the willow family, they must be feeling no pain. Thanks for the comment - MP
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