These wide-ranging hummingbirds have remarkably long, straight bills. Males have sparkling light blue crowns and purplish red throats bordered by white streaks. Although difficult to see, the white stripe on the lower back of both sexes is a helpful field mark. Long-billed Starthroats inhabit second growth woodlands, forest edges, and partially open areas with trees and hedges. They are usually fairly quiet and forage individually. These starthroats frequently perch out in the open, especially when hawking for insects. They also gather nectar from flowers, particularly those of large trees.