Allen's Hummingbird vs Olive-spotted Hummingbird
Selasphorus sasin compared with Talaphorus chlorocercus
Side-by-Side Comparison
| Attribute | Allen's Hummingbird | Olive-spotted Hummingbird |
|---|---|---|
| Scientific Name | Selasphorus sasin | Talaphorus chlorocercus |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 8.1 cm (3.2 in) | — |
| Weight | 3.1500000000000004 g (0.11 oz) | 4.85 g (0.17 oz) |
| Diet | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … | Feeds on nectar from diverse forest flowers, hovering briefly at each bloom. Takes small insects … |
| Clutch Size | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Olive-spotted Hummingbird
Melodic, descending phrase with warm rich timbre; smooth notes flowing warmly downward in relaxed sequence.
Geographic Range & Migration
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Olive-spotted Hummingbird
Found in humid lowland forests from Colombia to Peru and western Brazil. Resident in western Amazonian lowlands.
Conservation Status
Allen's Hummingbird
Olive-spotted Hummingbird
About These Birds
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.
Olive-spotted Hummingbird
A small hummingbird (8-9 cm) found in humid lowland forests from Colombia to Peru and western Brazil. Green plumage with olive spots on flanks. Nectarivore of forest edges and river-edge habitats. An uncommon species of western Amazonian lowlands.