Sword-billed Hummingbird vs White-throated Mountain-gem
Ensifera ensifera compared with Lampornis castaneoventris
Side-by-Side Comparison
| Attribute | Sword-billed Hummingbird | White-throated Mountain-gem |
|---|---|---|
| Scientific Name | Ensifera ensifera | Lampornis castaneoventris |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 15.3 cm (6.0 in) | 12.2 cm (4.8 in) |
| Weight | 12.75 g (0.45 oz) | 5.58 g (0.20 oz) |
| Diet | Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects … | Nectarivore of Costa Rican highlands; visits diverse cloud-forest flowers. Supplements diet with small insects and … |
| Clutch Size | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Shared Habitats
Sword-billed Hummingbird only
White-throated Mountain-gem only
None
Song & Call Comparison
Sword-billed Hummingbird
Thin, reedy whistle with plaintive character; soft nasal tone held briefly then gently fading in mist.
White-throated Mountain-gem
Thin, reedy trill with wavering quality; soft rapid notes with gentle tremolo effect given from cover.
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-throated Mountain-gem
Endemic to the highlands of Costa Rica and western Panama in cloud forest. 1,200–2,800 m. Resident.
Conservation Status
Sword-billed Hummingbird
White-throated Mountain-gem
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-throated Mountain-gem
Grey-breasted Sabrewing: males with iridescent violet gorget; metallic green above; gray breast; 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.
White-throated Mountain-gem
A medium-sized hummingbird (10-11 cm) endemic to the highlands of Costa Rica and western Panama at 1,000-2,500 m. Males have a white throat and chestnut belly. Nectarivore of cloud forest and forest edges. A Talamanca-Chiriquí endemic.