Emerald-bellied Puffleg vs Allen's Hummingbird

Eriocnemis aline compared with Selasphorus sasin

Side-by-Side Comparison

Attribute Emerald-bellied Puffleg Allen's Hummingbird
Scientific Name Eriocnemis aline Selasphorus sasin
Order Caprimulgiformes Caprimulgiformes
Family Trochilidae Trochilidae
Conservation Status Least Concern Least Concern
Length
Wingspan 9.9 cm (3.9 in) 8.1 cm (3.2 in)
Weight 3.75 g (0.13 oz) 3.1500000000000004 g (0.11 oz)
Diet Nectarivore of Peruvian and Bolivian montane forest; forages at Ericaceae and epiphytic orchids. Takes small … Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with …
Clutch Size -- 2
Population Trend

Habitat Comparison

Shared Habitats

Emerald-bellied Puffleg only

None

Allen's Hummingbird only

None

Song & Call Comparison

Emerald-bellied Puffleg

Song

Rapid, light twittering cascade; high airy notes tumbling quickly in animated sequence during competitive interaction.

Allen's Hummingbird

Song

Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.

Geographic Range & Migration

Emerald-bellied Puffleg

Found on the eastern Andean slope from Peru to Bolivia in lower montane cloud forest at 900–2,200 m.

Allen's Hummingbird

Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.

Conservation Status

Least Concern

Emerald-bellied Puffleg

Least Concern

Allen's Hummingbird

About These Birds

Emerald-bellied Puffleg

A small hummingbird (10-11 cm) found in Andean cloud forests from Venezuela to Bolivia at 2,000-3,200 m. Green plumage with emerald-green belly and white leg puffs. Nectarivore of montane forest and forest edges. A widespread Andean cloud forest species.

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.

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