Swallow-tailed Hummingbird vs Allen's Hummingbird
Eupetomena macroura 对比 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Swallow-tailed Hummingbird | Allen's Hummingbird |
|---|---|---|
| 学名 | Eupetomena macroura | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 13.9 cm (5.5 in) | 8.1 cm (3.2 in) |
| 体重 | 7.94 g (0.28 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Large, conspicuous nectarivore of Brazilian cerrado and gardens. Feeds at Erythrina and diverse blossoms; supplements … | 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
Swallow-tailed Hummingbird
High, crystalline twittering with silvery sheen; rapid light notes cascading brightly in animated display.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Swallow-tailed Hummingbird
Found in open habitats across eastern South America from the Guianas to Argentina. Resident in cerrado and gardens.
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
Swallow-tailed Hummingbird
Allen's Hummingbird
About These Birds
Swallow-tailed Hummingbird
燕尾蜂鸟，体长15-17厘米。虹彩蓝绿色，尾羽深度分叉。分布于南美洲东部。
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.