Sword-billed Hummingbird vs White-tailed Hummingbird
Ensifera ensifera so với Eupherusa poliocerca
Side-by-Side Comparison
| Thuộc Tính | Sword-billed Hummingbird | White-tailed Hummingbird |
|---|---|---|
| Tên Khoa Học | Ensifera ensifera | Eupherusa poliocerca |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Near Threatened |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 15,3 cm (6.0 in) | 12,1 cm (4.8 in) |
| Khối Lượng | 12,75 g (0.45 oz) | 4,625 g (0.16 oz) |
| Chế Độ Ăn | Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects … | Feeds on nectar from flowering shrubs and epiphytes. Catches small insects and spiders to meet … |
| Số Trứng | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Sword-billed Hummingbird only
White-tailed Hummingbird only
Không
Song & Call Comparison
Sword-billed Hummingbird
Thin, reedy whistle with plaintive character; soft nasal tone held briefly then gently fading in mist.
White-tailed Hummingbird
Harsh, buzzy chatter with emphatic rhythm; coarse rough notes delivered rapidly with raw buzzy texture.
Geographic Range & Migration
Sword-billed Hummingbird
Found in Andean cloud forests from Venezuela south through Colombia, Ecuador, Peru, and Bolivia. 1,700–3,500 m.
White-tailed Hummingbird
Endemic to the Sierra Madre del Sur of Guerrero and Oaxaca, Mexico. Classified as Vulnerable due to restricted range.
Tình Trạng Bảo Tồn
Sword-billed Hummingbird
White-tailed Hummingbird
How to Tell Them Apart
Sword-billed Hummingbird
Olivaceous Thornbill: males with iridescent purple gorget; metallic olive-bronze above; white underparts; females green above; spots
White-tailed Hummingbird
Groove-billed Ani: glossy black overall; distinctive grooved bill with ridges; long graduated tail; purple-blue gloss; communal nester
About These Birds
Sword-billed Hummingbird
A remarkable hummingbird (14-15 cm body) with a bill as long as its body (8-10 cm), the longest bill relative to body size of any bird. Found in Andean cloud forests from Venezuela to Bolivia at 1,700-3,500 m. The extraordinarily long bill evolved to feed on deep tubular Passiflora flowers.
White-tailed Hummingbird
A medium-sized hummingbird (10-11 cm) endemic to the Sierra Madre del Sur of Guerrero and Oaxaca, southwestern Mexico. Green plumage with white outer tail feathers. Nectarivore of montane forest. Classified as Vulnerable due to restricted range.