Buff-bellied Hummingbird vs Anna's Hummingbird
Amazilia yucatanensis compared with Calypte anna
Side-by-Side Comparison
| Attribute | Buff-bellied Hummingbird | Anna's Hummingbird |
|---|---|---|
| Scientific Name | Amazilia yucatanensis | Calypte anna |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | 10.0 cm (3.9 in) |
| Wingspan | 11.0 cm (4.3 in) | 12.0 cm (4.7 in) |
| Weight | 4.175 g (0.15 oz) | 4.3 g (0.15 oz) |
| Diet | Feeds on nectar from Yucatán flowering trees and garden plants; supplements with insects and spiders … | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … |
| Clutch Size | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Anna's Hummingbird
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
Song & Call Comparison
Buff-bellied Hummingbird
Thin, sibilant twittering with airy silvery quality; high light notes cascading softly near flowers.
Anna's Hummingbird
Male produces a complex, scratchy song with buzzy 'dzzzzt' notes. Gives a nasal 'chee-chee-chee'. Males sing year-round, even in winter; one of few hummingbirds with true song.
Geographic Range & Migration
Buff-bellied Hummingbird
Found from southern Texas through eastern Mexico to Belize and Guatemala. Resident in Gulf Coast lowlands.
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Conservation Status
Buff-bellied Hummingbird
Anna's Hummingbird
How to Tell Them Apart
Buff-bellied Hummingbird
Steere's Coucal: dark brown above with iridescent gloss; rufous wings; pale below; long dark tail; red eye; Philippine island species
Anna's Hummingbird
Metallic bronze-green upperparts. Males have an iridescent rose-red crown and gorget. Females have green upperparts with grey underparts and a small red gorget patch.
Medium-length, straight, thin black bill
About These Birds
Buff-bellied Hummingbird
A medium-sized hummingbird (10-11 cm) found from southern Texas through eastern Mexico to Belize and Guatemala. Green upperparts, buff-orange belly, and red bill with dark tip. Nectarivore of gardens, citrus groves, and forest edges. Common at Texas Gulf Coast feeders.
Anna's Hummingbird
Anna's hummingbird is the most common hummingbird along the Pacific coast and one of only three species resident in the United States year-round. Males perform spectacular dive displays, plummeting from 40 meters and pulling up with a loud chirp produced by tail feathers. Their body temperature can drop to near ambient at night to conserve energy.