I hold late birds on my grass! They be bloody and missing head!? I don't have any pets but i found two insensible birds...

I don't have any pets but i found two insensible birds lying on my lawn. It be disgusting! Where are they coming from and how did they die! Again I don't have pets. My neighbor does but I own a big fence and the dog is hardly near it!! What do I do roughly these dead headless birds!!
Answers:    Could hold been that they be attacked by bigger birds.

HOWEVER, I can just roughly guarantee that it was a CAT. That obstruction of yours is child's play to a cat, and there are feral cats contained by nearly every neighborhood in America. You may not see them, but they are in attendance.
Pick them up and toss in rubbish can. This is a typical sign of a cat. I know you said you don't have cats and a fenced patio. Still, a cat could have dropped it from a tree branch or found an first performance in your wall or even climbed over fence or garage to carry to your yard. Really sounds close to the birds dropped out of cat's mouth from an above limb and couldn't find out how to attain into your yard to grasp the rest of its lunch.