I must warn everyone that this picture is very disturbing. It's the remains of a bluejay found just 25 feet from the THAT BLUE YAK GARDEN OF HOPE. The odd thing is - only the feathers and - are you ready for this? ...a BEAK were found. No bones, no insides - just feathers and beak. As a self taught naturalist I'm ruling out cats, kids, squirrels, bees and the birds of prey with the sharp nails.
The only answer I can think of is what injuns used to call Sasquatch (English for big assed orange gorilla that run like this).
The local injuns around here were the Lenni Lenape. If can muster up the follow through, I just may head down to the Chester County Historical Society to see if any of those books hold any answers.