In this video segment from Outdoor Nevada, Brian Wignall speaks with a naturalist about four species of hummingbirds which inhabit the Nevada region: the Anna's Hummingbird, the Costa's Hummingbird, the Black-chinned Hummingbird, and the Rufous Hummingbird. This segment examines the physical traits of these related species and their nesting, feeding, and migration behaviors. It also describes some of the basic differences between male and female hummingbirds.