Blue-chested Hummingbird vs Allen's Hummingbird
Polyerata amabilis 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Blue-chested Hummingbird | Allen's Hummingbird |
|---|---|---|
| 学名 | Polyerata amabilis | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 8.1 cm (3.2 in) |
| 体重 | 4.15 g (0.15 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Feeds on nectar from diverse forest flowers, hovering briefly at each bloom. Takes small insects … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Blue-chested Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well through broad-leafed tropical forest.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Blue-chested Hummingbird
Found in humid lowland forests from Honduras to Ecuador. Resident in Caribbean lowland forests.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
保全状況
Blue-chested Hummingbird
Allen's Hummingbird
How to Tell Them Apart
Blue-chested Hummingbird
Andaman Coucal (alt): dark glossy brown above; rufous wings; pale below; long dark tail; red eye; Andaman island endemic
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Blue-chested Hummingbird
A small hummingbird (8-9 cm) found in humid lowland forests from Honduras to Ecuador. Males have a bright blue breast patch. Green plumage. Nectarivore of forest undergrowth and edges. Found primarily in Caribbean lowland forests.
Allen's Hummingbird
A small hummingbird (8-9 cm) breeding along the Pacific coast from Oregon to southern California. Males have an orange-red throat and rufous flanks. Closely related to Rufous Hummingbird. Partial migrant; some populations resident on Channel Islands. Named after Thomas Allen.