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Chickadees Weather January
Even though the weather has been unusually mild and the ground
disgustingly free of snow, January usually is the month that’s
bound to have the coldest day of the year. I have fond memories
of one of my all-time favorite college professors, Prof. Lavelva
Bradbury, outstanding teacher of physical geography.
Invariably her Monday morning class began with a memorable
monologue often in regards to an unusual experience she recently
had with the land or weather. One of her talks dealt with
temperature records she had maintained for many years, and she
warned us to dress warmly because we could expect the coldest
time of the year to occur around the third week of January.
You wonder how small birds, such as black-capped chickadees,
survive these below-zero nights. The winter metabolism of a
chickadee is said to resemble a "raging inferno." You
don’t feel a distinct heartbeat when you hold one, as you can
with a blue jay for example, but rather you sense that something
inside of it is buzzing or humming. I’ve handled hundreds of
them through banding procedures and have come to sense this
unusual phenomenon quite well.
A chickadee’s heartbeat speeds up as the surrounding air
temperature decreases. An active feeding chickadee on a sub-zero
day could be expected to have a heartbeat of over 1000 per
minute. The heart would slow down to about 500 beats when the
bird is asleep. What amazed me was to learn that there is on
record (as proven through bird banding) a chickadee that lived in
the wild to be at least 12 years and five months old! It was
still very alive when it was released for the last time and the
bander didn’t know how old it lived to be. What a powerful
heart for such a tiny creature!
This one-third ounce "speed merchant," the
chickadee, has a quick get-away clocked at three-hundredths of
one second. Actually their overall flight is quite slow – short
undulating spurts. But keep in mind the bird’s tiny size and the
fact that fast flight over long distances is not needed in its
lifestyle. Acrobatic quickness and inquisitiveness, yes.
Prolonged speed, no.
Have you noticed a build-up in numbers of chickadees at your
feeders during the past several weeks? Depending upon severity
of weather and the food-finding conditions to the north, we can
usually expect a southerly movement of black-capped chickadees
into this region during the latter part of November and into
December. Large irruptions of this nature are the exception,
however.
It was during a two-day weekend of late January, 1969, that I
captured a total of 53 chickadees in my traps for banding near
the feeders in the backyard of the Ridges Rangelight Residence
at Baileys Harbor where I was living at the time. Thirty-nine
were unbanded and fourteen had already been banded by myself in
previous months, dating back to April 1, 1967. Little wonder
that the feeders were going empty with regularity from day to
day with all those hungry chickadees around, along with the
other bird species. One year we kept track of the sunflower
seeds we bought and fed to the birds and it amounted to 44
fifty-pound bags! That’s over one ton! The huge wintering
flock of evening grosbeaks that year, as many as 300 on some
days, was largely responsible for the high bird-food bill.
It’s been said that very few wild animals, including birds,
live long enough to die a natural death. The great majority of
them are killed and devoured by their natural enemies. Diseased
birds, ones with foot pox and slow in taking off, or crippled
birds are most often the ones that fall victim to their
predators. This natural phenomenon not only helps to keep animal
populations in reasonably proper balance, but also tends to
insure strong, healthy breeding stock of all animal species.
We never tire of watching and enjoying the chickadees that
feast primarily on the black oil sunflower seeds and the marvel
meal, a peanut butter mixture, at our place. However, it’s in
the wild woods, well away from humans and bird feeders, that we
especially like to observe these black and white, beady-eyed
bundles of nervous energy.
To say the least, a chickadee has very strong feet and claws
and a short, rather pointed, extremely authoritative bill.
Observe one’s feeding habits and you will soon learn that it
spends much of its time in an upside-down position searching the
undersides of twigs and branches for especially insect eggs, such
as those of tent caterpillars, wood-boring beetles, and
cankerworms. It has been estimated that one chickadee can
consume 100,000 cankerworm eggs in 25 days.
Hopefully this later January their soft, rather loose and
fluffy plumage will keep these black-capped favorites warm when,
during one day at the extreme, they will be active for about nine
hours and asleep for 15. What a feat on a 25 degrees below zero
F. night! Keep that in mind this month when you either turn up
the thermostat or add another chunk of hardwood to the fire.
Three cheers for the chickadee, personification of
cheerfulness, the trusting favorite of nearly everyone in North
America!
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