Buff-thighed Puffleg vs Allen's Hummingbird
Haplophaedia assimilis compared with Selasphorus sasin
Side-by-Side Comparison
| Attribute | Buff-thighed Puffleg | Allen's Hummingbird |
|---|---|---|
| Scientific Name | Haplophaedia assimilis | Selasphorus sasin |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 11.4 cm (4.5 in) | 8.1 cm (3.2 in) |
| Weight | 5.05 g (0.18 oz) | 3.1500000000000004 g (0.11 oz) |
| Diet | Nectarivore of Peruvian montane forest; forages at Ericaceae and bromeliads. Supplements diet with small arthropods. | 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
Buff-thighed Puffleg
Melodic, two-note descending call; pure warm tones stepping down smoothly, given at regular intervals from perch.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Buff-thighed Puffleg
Found on the eastern Andean slope in Peru in lower montane and foothill forest. 600–2,200 m elevation.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Conservation Status
Buff-thighed Puffleg
Allen's Hummingbird
How to Tell Them Apart
Buff-thighed Puffleg
Brown Violetear: males with glittering violet gorget; metallic bronze-green above; violet ear tufts; females green with spotted below
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Buff-thighed Puffleg
A small hummingbird (10-11 cm) found in Andean cloud forests from Peru to Bolivia at 1,000-2,500 m. Green plumage with buff-colored leg puffs. Nectarivore of montane forest undergrowth and edges. Closely related to Greenish Puffleg. An Andean foothill specialist.
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.