Sword-billed Hummingbird vs Rufous-vented Whitetip
Ensifera ensifera в сравнении с Urosticte ruficrissa
Side-by-Side Comparison
| Характеристика | Sword-billed Hummingbird | Rufous-vented Whitetip |
|---|---|---|
| Научное название | Ensifera ensifera | Urosticte ruficrissa |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Trochilidae | Trochilidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 15,3 cm (6.0 in) | 11,4 cm (4.5 in) |
| Масса | 12,75 g (0.45 oz) | 4,15 g (0.15 oz) |
| Питание | Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects … | Nectarivore of Ecuadorian and Peruvian montane forest; forages at Ericaceae and Fuchsia. Takes small insects. |
| Размер кладки | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
Sword-billed Hummingbird only
Rufous-vented Whitetip only
Нет
Song & Call Comparison
Sword-billed Hummingbird
Thin, reedy whistle with plaintive character; soft nasal tone held briefly then gently fading in mist.
Rufous-vented Whitetip
Pure, bell-like tones in descending sequence; clear musical notes stepping down smoothly with long resonant quality.
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.
Rufous-vented Whitetip
Found on the eastern Andean slope of Ecuador in cloud forest and forest edges. 800–1,800 m elevation.
Охранный статус
Sword-billed Hummingbird
Rufous-vented Whitetip
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
Rufous-vented Whitetip
Glittering Starfrontlet: males with glittering violet gorget; metallic green above; white underparts; females green above; spotted below
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.
Rufous-vented Whitetip
A small hummingbird (9-10 cm) found in Andean cloud forests from Colombia to Peru at 1,500-2,500 m. Green plumage with rufous vent and white-tipped tail. Nectarivore of montane forest. Closely related to Purple-bibbed Whitetip. Uncommon.