The birds are pretty big, with a wingspan of slightly less than 3 feet. But they're relatively small when compared with a raven (4.9 feet) or a bald eagle (7.5 feet).
The juveniles (like the one on the left) wait impatiently to be fed and, while waiting, pound their beaks (bills?) on the wooden railing, chipping off chunks (giant splinters) on the back side.
Nature. Gotta love it.
Image ©Carol Leigh, 2020