Blue-capped Puffleg vs Allen's Hummingbird
Eriocnemis glaucopoides 对比 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Blue-capped Puffleg | Allen's Hummingbird |
|---|---|---|
| 学名 | Eriocnemis glaucopoides | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 10.1 cm (4.0 in) | 8.1 cm (3.2 in) |
| 体重 | 3.75 g (0.13 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore of Colombian Andes; fluffy leg tufts show during hover at Ericaceae blooms. Gleans small … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 产卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Blue-capped Puffleg
Buzzy, high-pitched trill barely audible; rapid soft vibration with insect-like quality during hovering near blossoms.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Blue-capped Puffleg
Endemic to Argentina and adjacent Bolivia in high Andean scrub and puna at 2,600–4,200 m elevation.
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
Blue-capped Puffleg
Allen's Hummingbird
How to Tell Them Apart
Blue-capped Puffleg
Velvet-browed Brilliant: males with iridescent purple gorget; velvety black brow; metallic bronze-green above; females green with spots
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Blue-capped Puffleg
蓝冠毛腿蜂鸟，体长10-11厘米。分布于玻利维亚至阿根廷西北部。最南端的毛腿蜂鸟物种。
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.