I'm afraid I don't see a bird, either. Here's a link for you, if you haven't discovered it for yourself. http://www.rockhounds.com/rockshop/clubs/pennsylvania.shtml
Sometimes it's easier to see what you've got in person. Plus, a local rock/mineral/gem club might have fieldtrips, etc. Always cool to find like-minded people!
Keep showing us your finds!
Tigger
Judd!! in photo #187 [first and fifth photos same photo] i can see what you are talking about, looks like a type of sparrow. but in the other three i can not see it, but i can see at least three breaks in what i thank is a broken projectile point that mother nature made to resembil a bird effigy. if it was indian made you [should] see a bird in all four photos. Terry