Some days there is nothing like black and white photography to show details.
Unknown 4 year-old-bald eagle. Oh, so, self-assured.
A pair of ospreys. The female is the upper bird. Note her bigger bulk.
As in all raptors, the girls are bigger.
A glare that would be worthy of a bald eagle.
The eastern kingbird certainly seemed to be issuing an edict about whose territory I was on.
Male osprey taking home a fish for his chicks who are close to fledging.
doc ellen's journey 
You are right about b&w showing details.
I was taught by a very experienced photographer that if you had a color photo and weren’t quite sure about the sharpness in any part of it to convert it to black and white: instantly you had your answer.