By the way, the bird pictured in the post below is an osprey, not a bald eagle as I’d thought.
I went googling for images to try to track it down. Bald eagles have no dark stripes on their heads at all, the tops of their heads are smooth, and their beaks are orange-yellow.
Ospreys have a swooped-back flare of feathers on their heads, they have dark stripes around their eyes, and their beaks are black.
So now I know. Still frickin’ cool, though.