I look for trails they use. Entrance and escape routes. I also try to search a little for possible dens. You can glass hillside at midday and might see one napping under a shade tree. But I want to know if there will be coyotes in the vicinity when I am calling. If you have some farmers around I am sure that they probable have coyote problems and would love to have them thinned out and they have almost all the information you need to kill some coyotes on their farm.