Green-fronted Hummingbird vs Allen's Hummingbird
Leucolia viridifrons compared with Selasphorus sasin
Side-by-Side Comparison
| Attribute | Green-fronted Hummingbird | Allen's Hummingbird |
|---|---|---|
| Scientific Name | Leucolia viridifrons | Selasphorus sasin |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | — | 8.1 cm (3.2 in) |
| Weight | 6.166666666666667 g (0.22 oz) | 3.1500000000000004 g (0.11 oz) |
| Diet | Nectarivore visiting diverse flowering plants; supplements the high-sugar nectar diet with small insects and spiders … | 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
Green-fronted Hummingbird
Deep, hollow churring resonant sound; low-frequency buzzing trill carrying well through humid forest edge.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Green-fronted Hummingbird
Endemic to the Pacific slope of Mexico from Sonora to Oaxaca. Resident in tropical deciduous forest.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Conservation Status
Green-fronted Hummingbird
Allen's Hummingbird
How to Tell Them Apart
Green-fronted Hummingbird
Buff-headed Coucal: buff-white head; dark brown back; rufous wings; pale underparts; long dark tail; red eye; striking head pattern
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Green-fronted Hummingbird
A medium-sized hummingbird (10-11 cm) endemic to the Pacific slope of Mexico from Sonora to Oaxaca. Males have a green forehead and white breast. Nectarivore of tropical deciduous forest and thorn scrub. A Mexican endemic.
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.