Allen's Hummingbird vs Long-tailed Woodnymph
Selasphorus sasin 对比 Thalurania watertonii
Side-by-Side Comparison
| 属性 | Allen's Hummingbird | Long-tailed Woodnymph |
|---|---|---|
| 学名 | Selasphorus sasin | Thalurania watertonii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Endangered |
| 体长 | — | — |
| 翼展 | 8.1 cm (3.2 in) | 10.9 cm (4.3 in) |
| 体重 | 3.1500000000000004 g (0.11 oz) | 4.3999999999999995 g (0.16 oz) |
| 食性 | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … | Feeds on floral nectar in Atlantic Forest understory; supplements diet with small insects and spiders … |
| 产卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Long-tailed Woodnymph
Soft, sibilant notes in flowing sequence; gentle high twittering with airy quality near flowering vegetation.
Geographic Range & Migration
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Long-tailed Woodnymph
Endemic to the Atlantic Forest of northeastern Brazil. Classified as Endangered due to severe habitat fragmentation.
保护状况
Allen's Hummingbird
Long-tailed Woodnymph
How to Tell Them Apart
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
Long-tailed Woodnymph
Savile's Bustard: pale brown above; white underparts; black crown; pale streaked mantle; males with dark collar; sexually dimorphic
About These Birds
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.
Long-tailed Woodnymph
A medium-sized hummingbird (11-12 cm) endemic to the Atlantic Forest of northeastern Brazil. Males have a long, deeply forked violet-blue tail and green body. Nectarivore of forest edges. Classified as Endangered due to severe Atlantic Forest fragmentation.