Must because two things happen at the same time doesn't mean there is any relation between the two. IE There seems to be enough rodents, and song birds to support a HUGE population of hawks, owls, eagles, opossum, skunks, raccoons, and coyotes. All those animals are eating something, I bet it's eggs and young game animals! Raptor are protected and no-one hunts and traps fur bearers now days! Is funny how the ditches are full of crawfish, tadpoles and frogs here in big farm country.