Sherry
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Viewing 6 posts - 1 through 6 (of 6 total)
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I once noticed a crow walking on one foot due to an injury on his other foot. Now I understand so much more about foot disease in crows.
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1. Inbreeding could lead to a higher rate of genetic disease? Less ability to adapt? 2. I guess extra-pair fertilization is not that surprising to me, but I'm wondering about the timing. Would the female crow lay eggs at different times? It could be beneficial in that there would be greater genetic variation in the young.
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I have noticed foraging flocks in farm fields in the fall. The most common flocks I see are of Canada geese: in school athletic fields, on golf courses, or by the river.
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What a wonderful story. I admire the way you stopped to observe what was going on.
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I was surprised that they were able to take track of individual crows for up to two decades, that they understood the family ties between crows and that they could find family members still flocking together (such as sisters two years apart).
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1. I would mention that snakes and even squirrels are responsible for more predation. 2. We have many American Crows in our neighborhood, but I have never thought to look for a nest. 3. I live where both species are present.
Viewing 6 posts - 1 through 6 (of 6 total)