Anna's Hummingbird vs Buff-thighed Puffleg
Calypte anna 比較対象 Haplophaedia assimilis
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Buff-thighed Puffleg |
|---|---|---|
| 学名 | Calypte anna | Haplophaedia assimilis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 10.0 cm (3.9 in) | — |
| 翼開長 | 12.0 cm (4.7 in) | 11.4 cm (4.5 in) |
| 体重 | 4.3 g (0.15 oz) | 5.05 g (0.18 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Peruvian montane forest; forages at Ericaceae and bromeliads. Supplements diet with small arthropods. |
| 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.
Buff-thighed Puffleg
Melodic, two-note descending call; pure warm tones stepping down smoothly, given at regular intervals from perch.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Buff-thighed Puffleg
Found on the eastern Andean slope in Peru in lower montane and foothill forest. 600–2,200 m elevation.
保全状況
Anna's Hummingbird
Buff-thighed Puffleg
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
Buff-thighed Puffleg
Brown Violetear: males with glittering violet gorget; metallic bronze-green above; violet ear tufts; females green with spotted below
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.
Buff-thighed Puffleg
ペルーからボリビアにかけてのアンデス山地林（標高1,000〜2,500 m）に生息する小型ハチドリ（体長10〜11 cm）。緑色の羽衣とバフ色の脚の羽毛が特徴。山地林の下層・林縁の蜜食性。ミドリフサアシハチドリに近縁。アンデス山麓の専門種。