Anna's Hummingbird vs Hook-billed Hermit
Calypte anna 比較対象 Glaucis dohrnii
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Hook-billed Hermit |
|---|---|---|
| 学名 | Calypte anna | Glaucis dohrnii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | 10.0 cm (3.9 in) | — |
| 翼開長 | 12.0 cm (4.7 in) | 12.6 cm (5.0 in) |
| 体重 | 4.3 g (0.15 oz) | 6.659999999999999 g (0.23 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore and occasional insectivore; visits heliconia, bromeliads, and Inga flowers while trap-lining territories. |
| 一腹卵数 | 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
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.
Hook-billed Hermit
Thin, penetrating whistle sustained briefly; followed by rapid buzzing trill, combination unique among syntopic hummingbirds.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Hook-billed Hermit
Found along the Atlantic coast of eastern Brazil from Bahia to Espírito Santo. Resident in coastal rainforest. Endangered; highly restricted range.
保全状況
Anna's Hummingbird
Hook-billed Hermit
How to Tell Them Apart
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
Hook-billed Hermit
Bronze-green upperparts; cinnamon-rufous underparts with faint darker barring; pale buff supercilium stripe; rufous-buff tail with dark subterminal band; strongly curved bill; vulnerable Brazilian Atlantic forest endemic.
About These Birds
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.
Hook-billed Hermit
A medium-sized hummingbird (12-13 cm) endemic to the Atlantic Forest of eastern Brazil. Bronze-green plumage with a hooked bill tip. Nectarivore of forest undergrowth, visiting Heliconia and bromeliads. Classified as Endangered due to severe habitat loss in Brazil's coastal forests.