Blue Jays in an absolute frenzy led me here.
Big bird. Even bigger is the Eurasian Eagle Owl (with one of the great binomials: Bubo bubo), one of which has escaped the Central Park Zoo and is at liberty in Central Park. Also in unnatural wild news: an 4-5 foot (reports differed) American Alligator was pulled from Prospect Park Lake in extremely poor shape on Sunday after its moral vacuum of an “owner” dumped it there.
Backyard and Beyond 
I’ve heard the Eagle Owl and the GHO hybridize on occasion. That has to be an interesting looking beastie. Maybe we will get lucky. Chuck