White-bellied Hummingbird vs Allen's Hummingbird
Elliotomyia chionogaster compared with Selasphorus sasin
Side-by-Side Comparison
| Attribute | White-bellied Hummingbird | Allen's Hummingbird |
|---|---|---|
| Scientific Name | Elliotomyia chionogaster | Selasphorus sasin |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | — | 8.1 cm (3.2 in) |
| Weight | 5.525 g (0.19 oz) | 3.1500000000000004 g (0.11 oz) |
| Diet | Hovering nectarivore of lowland and montane forest, probing Heliconia and garden flowers. Supplements with insects … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| Clutch Size | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-bellied Hummingbird
Melodic, rolling phrase with rich bubbly timbre; warm notes tumbling loosely in pleasant continuous sequence.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
White-bellied Hummingbird
Found in Andean highlands from Peru to Argentina at 2,000-4,000 m. Resident in montane scrub and Polylepis woodland.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Conservation Status
White-bellied Hummingbird
Allen's Hummingbird
About These Birds
White-bellied Hummingbird
A small hummingbird (9-10 cm) found in Andean highlands from Peru to Argentina at 2,000-4,000 m. Green plumage with white belly. Nectarivore of montane scrub, gardens, and Polylepis woodland. A common high-altitude hummingbird.
Allen's Hummingbird
A small hummingbird (8-9 cm) breeding along the Pacific coast from Oregon to southern California. Males have an orange-red throat and rufous flanks. Closely related to Rufous Hummingbird. Partial migrant; some populations resident on Channel Islands. Named after Thomas Allen.