Chestnut-bellied Hummingbird vs Allen's Hummingbird
Saucerottia castaneiventris compared with Selasphorus sasin
Side-by-Side Comparison
| Attribute | Chestnut-bellied Hummingbird | Allen's Hummingbird |
|---|---|---|
| Scientific Name | Saucerottia castaneiventris | Selasphorus sasin |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Near Threatened | Least Concern |
| Length | — | — |
| Wingspan | — | 8.1 cm (3.2 in) |
| Weight | 5.0 g (0.18 oz) | 3.1500000000000004 g (0.11 oz) |
| Diet | Feeds on nectar from flowering shrubs and epiphytes. Catches small insects and spiders to meet … | 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
Chestnut-bellied Hummingbird
Melodic, flute-like phrase with clear warm quality; smooth notes flowing pleasantly in quiet forest sequence.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Chestnut-bellied Hummingbird
Endemic to the eastern Andes of Colombia at 1,400-2,700 m. Classified as Endangered due to limited range.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Conservation Status
Chestnut-bellied Hummingbird
Allen's Hummingbird
How to Tell Them Apart
Chestnut-bellied Hummingbird
Centropus menbeki: large; dark glossy black-brown; rich chestnut wings; long dark tail; red eye; New Guinea endemic coucal
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Chestnut-bellied Hummingbird
A medium-sized hummingbird (9-10 cm) endemic to the eastern Andes of Colombia at 1,400-2,700 m. Males have a distinctive chestnut-red belly. Green body. Nectarivore of cloud forest and forest edges. Classified as Endangered due to limited Colombian range.
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.