Figure 2. Right. Full gorget of adult male Rufous and Allen's hummingbirds. The gorget feathers wrap around the side of the throat. The gorget can be flared during display. These feathers, however, are not elongated, like those of Lucifer or Costa's hummingbirds. Left. Some Rufous and Allen's hummingbirds do not obtain full gorgets that extend at the sides of the throat. |