Glow-throated Hummingbird vs Allen's Hummingbird
Selasphorus ardens compared with Selasphorus sasin
Side-by-Side Comparison
| Attribute | Glow-throated Hummingbird | Allen's Hummingbird |
|---|---|---|
| Scientific Name | Selasphorus ardens | Selasphorus sasin |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Endangered | Least Concern |
| Length | — | — |
| Wingspan | 8.0 cm (3.1 in) | 8.1 cm (3.2 in) |
| Weight | 3.1 g (0.11 oz) | 3.1500000000000004 g (0.11 oz) |
| Diet | Nectarivore of Chiriquí highlands; feeds at flowering understorey shrubs and supplements with insects and spiders. | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| Clutch Size | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Glow-throated Hummingbird
Deep, hollow resonant churr; low-frequency buzzing sound vibrating persistently through tropical forest canopy.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Glow-throated Hummingbird
Endemic to the western highlands of Panama at 900-2,000 m in the Chiriquí region. Classified as Endangered.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Conservation Status
Glow-throated Hummingbird
Allen's Hummingbird
How to Tell Them Apart
Glow-throated Hummingbird
Black-billed Streamertail: males with glittering green body; elongated tail streamers; black bill; females plain green above; spotted
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Glow-throated Hummingbird
A tiny hummingbird (7-8 cm) endemic to the western highlands of Panama at 900-2,000 m. Males have a glowing magenta throat. Nectarivore of cloud forest edges. Classified as Endangered due to extremely restricted range in the Chiriquí highlands.
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.