Although Rock Doves (AKA pidgeons) can be very tasty, I would NEVER consider eating a city bird, certainly not one found dead. I wouldn't do this out in the country either, unless my own car was the cause of death, and then it depends on how much damage was inflicted......anyway I doubt the Pittsburgh Police would much appreciate shooting your own in town. As for the sporran, I'd be stunned if those birds didn't carry a wide assortment of parasites, etc. I take a pass if I were you. If you are really jonesing to make a bird sporran, I'd get hold of a full hide of something from a fly-tying supplier. You can get anything you want (well, almost, as long as legal....) and know it's prepped decently and safe to handle.