They follow the rhythms of nature and not the desires of people who come to see them. Field guides or spotting scopes are also helpful Raptor Identification Guide for Birds Commonly Seen in the NCA . Viewing tends to be best in mid-March, May and June, in the early morning and evening hours when raptors are actively hunting. During April, viewing opportunities slow as birds spend most of their time sitting on nests. By July, the canyon temperatures are fiercely hot, ground squirrels have gone back undergroung and many raptors have left the area.
Wildlife are wary of humans.
Patience is a wildlife watcher's best virtue. When an animal changes behavior as a result of your presence, you are too close. This is a U.S. Government Computer System.