White-eared Hummingbird occupies montane pine-oak, oak, and pine-evergreen forests from the extreme southwestern United States south to Nicaragua. These are territorial hummingbirds spend most of their time at the lower and middle levels of the forest, where they are particularly common near banks of low flowers. Both males and females have a dark cheek bordered by a long white stripe behind the eye, and both have some extent of red on the bill. Their metallic chipping song also helps identify them from similar species. White-eared Hummingbird nests are frequently placed in close proximity to one another and sometimes are even built on top of old nests. White-eared Hummingbird is primarily resident, but most individuals of the northernmost populations move south after breeding, and southern populations may have seasonal altitudinal movements.