Anna’s Hummingbird (Calypte anna)

Range

Anna’s Hummingbirds are year-round residents of the Pacific coast, ranging from southern Alaska to northern Baja California. Since the mid-1930s, the birds’ range has expanded greatly, likely due to their effective use of nonnative plants and feeders in urban and suburban areas. Anna’s Hummingbirds occur in BCRs 16, 33, and 35 in Arizona and New Mexico. The species is fairly common in southern Arizona, with some resident urban populations. They are a regular wintering bird in southwestern New Mexico and are occasionally found as far north as Albuquerque and Los Alamos.

Migration of this particular species is not well understood. They do not migrate in the traditional latitudinal sense; instead, they tend to migrate along ranges of altitude. Winter habitat is almost always in lower elevations near human residences with hummingbird feeders and dense cover for nighttime roosting. Some individual birds have also been known to migrate east to west.

Food

Anna’s Hummingbirds eat nectar from many flowering plants, including currant, gooseberry, manzanita, and many introduced species, such as eucalyptus. They eat a wide variety of insects, primarily targeting smaller ones, like midges, whiteflies, and leafhoppers. They also feed on tree sap leaking out from holes made by sapsuckers.

Nesting

Nesting occurs in Arizona, but typically not in New Mexico. Breeding begins in the fall, making it one of the earliest breeding species in Arizona. Habitat includes urban areas and parks, from sea level to 6,400 feet. In summer, they inhabit shrubland communities such as chaparral-oak areas and brushy riparian areas, as well as urban and suburban areas. Nest placement occurs in a variety of settings; nests have been spotted in oaks, chaparral, and vines ranging from less than 3 to 30 feet above ground.

Appearance

Anna's Male Hummingbird Males are more vocal than any other North American hummingbird. In the United States, Anna’s Hummingbirds are the only hummingbird species that sings. The male has a distinctive, dry, scratchy, buzzy “song” that it sings throughout the year. Adult males (and some young males) have an iridescent rose/red crown and gorget with elongated feathers projecting to the sides. Males turn their head from side to side as they sing, flashing their iridescent head as a signal to other hummingbirds. They have a green back and are gray, darker at the edges. The tail extends well beyond the wingtips.

 

 

 

 

Anna's Female Hummingbird

Adult females also have a green back and grayish underparts. Gorget markings vary from bronzy-gray mottling to a central splotch of rose/red feathers. Very rarely, rose-colored feathers may occur on the crown. The tail extends to or beyond the wingtips. Tail feathers are broad, rounded, and banded in a dull gray-green, blackish, or white color. Immature birds look somewhat similar to the adult females, although immature males have heavier mottling in the gorget. Anna’s Hummingbirds typically hold their tail motionless while hovering.

 

Black-chinned Hummingbird
Broad-tailed Hummingbird
Broad-billed Hummingbird
Rufous Hummingbird
Anna’s Hummingbird
Blue-throated Hummingbird
Calliope Hummingbird
Costa’s Hummingbird
Magnificent Hummingbird
Lucifer Hummingbird
Violet-crowned Hummingbird
Uncommon and Rare Hummingbirds