Rufous-tailed Hummingbird vs Allen's Hummingbird
Amazilia tzacatl 对比 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Rufous-tailed Hummingbird | Allen's Hummingbird |
|---|---|---|
| 学名 | Amazilia tzacatl | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 11.3 cm (4.4 in) | 8.1 cm (3.2 in) |
| 体重 | 5.04 g (0.18 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Common lowland nectarivore of Central America; visits Heliconia, banana, and garden flowers. Supplements with insects … | 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
Rufous-tailed Hummingbird
Deep, resonant trill with buzzing character; powerful churring vibration carrying across open hillside.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Rufous-tailed Hummingbird
Widely distributed from Mexico through Central America to western Ecuador. Resident in varied lowland habitats.
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
Rufous-tailed Hummingbird
Allen's Hummingbird
How to Tell Them Apart
Rufous-tailed Hummingbird
Rufous Coucal: entirely rufous-brown overall; long dark graduated tail; red eye; monochromatic rufous plumage; sexually similar
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Rufous-tailed Hummingbird
棕尾蜂鸟（Amazilia tzacatl），体长10-11厘米，广泛分布于从墨西哥经中美洲至哥伦比亚和委内瑞拉西部。属蜂鸟科（Trochilidae），尾羽棕色，是中美洲最常见的蜂鸟之一。
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.