Allen's Hummingbird vs Fork-tailed Woodnymph
Selasphorus sasin so với Thalurania furcata
Side-by-Side Comparison
| Thuộc Tính | Allen's Hummingbird | Fork-tailed Woodnymph |
|---|---|---|
| Tên Khoa Học | Selasphorus sasin | Thalurania furcata |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 8,1 cm (3.2 in) | 10,9 cm (4.3 in) |
| Khối Lượng | 3,1500000000000004 g (0.11 oz) | 4,4 g (0.16 oz) |
| Chế Độ Ăn | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … | Widespread Amazonian nectarivore visiting diverse forest-floor flowers. Supplements with insects and spiders caught in flight. |
| Số Trứng | 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.
Fork-tailed Woodnymph
Buzzy, insect-like trill with monotonous quality; sustained rapid vibration with minimal melodic content.
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.
Fork-tailed Woodnymph
Widely distributed in humid forests from Venezuela through Amazonia to Brazil, Bolivia, and Argentina. Resident.
Tình Trạng Bảo Tồn
Allen's Hummingbird
Fork-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
Fork-tailed Woodnymph
Blue Bustard: males with slate-blue neck and breast; brown-vermiculated above; white belly; females brown above; pale below
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.
Fork-tailed Woodnymph
A medium-sized hummingbird (10-11 cm) widely distributed in humid forests from Venezuela through Amazonia to Brazil, Bolivia, and Argentina. Males have violet-blue underparts and green crown. Deeply forked tail. Nectarivore of forest edges and gardens.