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Monday, July 30, 2012
Birds in Art
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Monday, July 16, 2012
Many Eagle Feathers
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eagle flight feathers |
In just one mile on a remote Washington beach laid all these
and more eagle feathers. They were sitting
on the sand and mixed in the drift at the high tide mark. After being arranged in a circle, the
tide redistributed them up and down the beach where they now lie.
Curiously, almost all of these feathers were from the tips of the
wings, the primaries. These birds more
or less shed only two matching feathers at a time, one from each side. Most small birds start their molt in the
middle of the wing and proceed outward over a few months until growth is
complete. Larger birds like the eagle
may take several years since it is harder for them to fly with even one feather
shed from each wing. I wonder where all
these feathers came from since I only saw about half a dozen eagles all day.
Sunday, July 1, 2012
Warm Feathers
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Growing Goose Feathers are warm |
My geese are molting their feathers. Unlike most birds, geese and other kinds
of waterfowl shed their feathers all at once.
So now, the goose feathers are strewn all around my field. Sometimes my geese get out which is where they were when I got home this afternoon. As I herded them back into the field, I
caught one to see how its feathers were growing back in. When I grabbed the bird, it felt warm as they
always do since their temperature is 6 or 7 degrees warmer than ours. What surprised me was that the growing
feathers were just as warm.
I had never felt warm feathers. But it isn’t really so surprising when you
know that the growing feathers are heavily supplied by blood. So much that if I cut the bigger goose
feathers off at the shaft, the bird could bleed to death. So this is a time of their lives that try to
treat themselves more gently until the feathers are fully grown.
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