Posted by Justin Miller on January 01, 1970 at 00:00:00
I would consider that to be within their ability. The ones in my yard regularly imitate hawks - especially when other birds are at feeders - they'll do the hawk call, all the other birds scatter, then they fly up and feed. Sometimes they don't necessarily have a reason to make a call - they just imitate sounds they commonly hear. So I suppose your blue jay has been around a lot of osprey.