Sword-billed Hummingbird vs White-tailed Hummingbird
Ensifera ensifera مقارنةً بـ Eupherusa poliocerca
Side-by-Side Comparison
| السمة | Sword-billed Hummingbird | White-tailed Hummingbird |
|---|---|---|
| الاسم العلمي | Ensifera ensifera | Eupherusa poliocerca |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Trochilidae | Trochilidae |
| حالة الحفاظ | Least Concern | Near Threatened |
| الطول | — | — |
| طول الجناح | 15,3 cm (6.0 in) | 12,1 cm (4.8 in) |
| الوزن | 12,75 g (0.45 oz) | 4,625 g (0.16 oz) |
| النظام الغذائي | 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 … |
| عدد البيض في الوضع | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
Sword-billed Hummingbird only
White-tailed Hummingbird only
بلا
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.
حالة الحفاظ
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.