Nothing, Coyote is a coyote. I have lived in the east, mid west, and the south, as well as Texas and NM. I think what makes it more difficult for people back east is lower population densities and heavy cover. They respond to the same things in all areas, just in heavy cover you are getting busted and not even knowing it. Out west in many of the places I call even if they circle to get the wind I can see them coming and usually get them killed. Calling in the thick brush and wooded areas here in NM is every bit as tough as calling back east. That said when I want to just go call and kill dogs I go were my success is much better and that is down on the desert lots more dogs and better visibility. When I spend a day on the desert I may cover over 100 miles of dirt road. That is a lot of country to call in. In Alabama when I called there I had a few deer leases to call that probably totaled 4000 acres, the same in Iowa. It doesn't take but a few calls to cover these smaller areas. So I think the biggest contributor to calling success is having access to lots of country.
drscott