Interspecific and intraspecific relationships have received much attention from ecologists and play an important role in the structure of wildlife communities, but researchers have rarely attempted to study interactions between phylogenetically unrelated organisms. We observed 6 interactions between badgers (Taxidea taxus) and red-tailed hawks (Buteo jamaicensis) between February and June 1999 on the Barry M. Goldwater Tactical Range (32°53′06″N, 112°43′24″W) near Ajo, Arizona. Each interaction lasted 5 to 20 minutes. Interactions were characterized by a red-tailed hawk following a badger as it searched for prey. On 2 occasions, red-tailed hawks apparently attempted to take prey items escaping from a badger. Badgers and red-tailed hawks feed primarily on small mammals, suggesting possible competition between the 2 species. Further research is needed to determine if badgers and red-tailed hawks in the Sonoran Desert are competing for a limiting resource or if one species (presumably the red-tailed hawk) is benefiting from the interaction without affecting the other species (badger).