Jordan Lake. A field ID mark on a fledgling osprey is all of the white points at the end of its feathers. They are quite distinct. I have also noticed some of this on fledgling bald eagles, and fledgling hawks. Not near as definitive but it is there. I keep asking the experts do they know why. So look at the neck and head ruff on the eagle and osprey and on the wings and see what you think.