What about CATS? Feral and the neighbors Puddy Cat that they let go outside for a hour or two. There seems to be a lot more of them now a days everywhere I hunt than there ever was. No matter where you go they are always working the edges, and ditches. They know where prey and game are. Watched one jump and kill a pheasant in a ditch a few weeks ago. Hawks and Owls are part of the balance, pets are a different matter I would think.
If only the hawks ate more cats.
Oddly enough I haven't lost a pigeon to a hawk yet. Knock on wood but losing a few would save on feed. But I did lose one to a cat a couple weeks ago.
I don't believe cats are that big of a deal in truly wild areas. I seldom see them far from a farm. I know a couple trappers and cats being caught are a rare occurrence. My guess is most of the birds killed by puddy tats are urban birds...not that it is any better.
On a side note the cat that killed the pigeon was lucky it ran the right direction when it was last seen in my yard. There is a young german who is discovering his love for cats. I only curtailed his lust when it appeared they were going to have their rendezvous in the crazy cat lady's yard. Might not be the best place for that to happen.
Tim