so i went out this morning and saw my silkie dead with its leg eaten ! i live in the middle of the city and have never seen anything bigger that a blue jay in my yard. would this be from a cat?
Well, for a start, blue jays can and do kill small poultry.
But there are many predators in the city: raccoons, rats, domestic cats, even coyotes. Although a coyote would have eaten more than 1 leg.
If the leg was pulled through the wire, the most likely culprit is a raccoon. They are well known for pulling poultry up against the wire and killing it.