Sunday, November 16, 2014

Bald Eagles

On 31 October 2014, Erika and I found two relatively cooperative Bald Eagles along the Canon River in Carleton College’s Arboretum. The raptors perched close by each other. The bird in the first photo seemed larger than that in the second and third. Assuming that the two birds originated from the same area, then the larger bird is probably a female, and, perhaps, the two eagles were a pair. Southern eagles, however, are smaller than northern ones, so, unless you know where they come from, sex can not always be identified by the birds’ sizes.
Both birds peered skyward when a dark juvenal eagle flew overhead. The presumed pair noisily took wing. The female appeared to chase off the male before joining the young bird in flight. The two birds circled the river twice before flying to the north. What appears to be a black band on the bird in the middle photo is an artifact—a shadow from its perch. Both birds appear to be undergoing heavy molt, making them somewhat speckled. This condition means these birds are probably three to five years old.

No comments:

Post a Comment