deer are exposed to coyotes everyday. They won't generally affect there movements. The area I live in has a very high number of coyotes and I've witnessed 3 chases where the lead coyote was within feet of catchingthe deer. The deer will return after the coyote(s) move through. It just takes them a little while to relax. I wouldn't worry about the coyote, other hunters walking around will affect them more. I've also shot several coyotes with my bow