Plain-capped Starthroat vs Allen's Hummingbird
Heliomaster constantii 对比 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Plain-capped Starthroat | Allen's Hummingbird |
|---|---|---|
| 学名 | Heliomaster constantii | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 12.5 cm (4.9 in) | 8.1 cm (3.2 in) |
| 体重 | 7.375 g (0.26 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore of Mexican and Central American dry and semi-open habitats. Visits large flowers; catches insects … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 产卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Plain-capped Starthroat
High, thin twittering barely audible; delicate cascade of minute notes, poorly documented vocal repertoire.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Plain-capped Starthroat
Found from northwestern Mexico south through Central America to northwestern Costa Rica in dry forest. Sea level to 1,800 m.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
保护状况
Plain-capped Starthroat
Allen's Hummingbird
How to Tell Them Apart
Plain-capped Starthroat
Peruvian Sheartail (alt): males with glittering violet gorget; metallic green above; white underparts; females green above; spotted
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Plain-capped Starthroat
普通星蜂鸟分布于墨西哥至哥斯达黎加的中美洲干旱林和开阔地带。雄鸟喉部具闪光紫色，体型较大，喙长直。以花蜜为主食，常在高大的花序上觅食。雄鸟有高调的求偶展示，鸣声响亮。
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.