Narrow-tailed Emerald vs Sword-billed Hummingbird
Chlorostilbon stenurus comparado com Ensifera ensifera
Side-by-Side Comparison
| Atributo | Narrow-tailed Emerald | Sword-billed Hummingbird |
|---|---|---|
| Nome científico | Chlorostilbon stenurus | Ensifera ensifera |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Trochilidae | Trochilidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 8,4 cm (3.3 in) | 15,3 cm (6.0 in) |
| Peso | 3,4000000000000004 g (0.12 oz) | 12,75 g (0.45 oz) |
| Dieta | Feeds on floral nectar at forest edges in northwestern South America. Supplements diet with small … | Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects … |
| Tamanho da postura | 2 | -- |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Narrow-tailed Emerald only
Nenhum
Sword-billed Hummingbird only
Song & Call Comparison
Narrow-tailed Emerald
Melodic, two-note ascending whistle; pure tones stepping upward clearly, given repeatedly near territory boundary.
Sword-billed Hummingbird
Thin, reedy whistle with plaintive character; soft nasal tone held briefly then gently fading in mist.
Geographic Range & Migration
Narrow-tailed Emerald
Found in Andean highlands from Venezuela to Peru at 800-2,500 m elevation. Resident in montane forest edges.
Sword-billed Hummingbird
Found in Andean cloud forests from Venezuela south through Colombia, Ecuador, Peru, and Bolivia. 1,700–3,500 m.
Estado de conservação
Narrow-tailed Emerald
Sword-billed Hummingbird
How to Tell Them Apart
Narrow-tailed Emerald
White-chinned Sapphire (alt): males with glittering blue gorget; metallic green above; white chin; females green above; spotted below
Sword-billed Hummingbird
Olivaceous Thornbill: males with iridescent purple gorget; metallic olive-bronze above; white underparts; females green above; spots
About These Birds
Narrow-tailed Emerald
A small hummingbird (8-9 cm) found in Andean highlands from Venezuela to Peru at 800-2,500 m. Green plumage with a narrow, slightly forked tail. Nectarivore of forest edges and gardens. Named for its distinctively narrow tail feathers.
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.