Mangrove Hummingbird vs Allen's Hummingbird
Amazilia boucardi compared with Selasphorus sasin
Side-by-Side Comparison
| Attribute | Mangrove Hummingbird | Allen's Hummingbird |
|---|---|---|
| Scientific Name | Amazilia boucardi | Selasphorus sasin |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Endangered | Least Concern |
| Length | — | — |
| Wingspan | 10.9 cm (4.3 in) | 8.1 cm (3.2 in) |
| Weight | 4.5 g (0.16 oz) | 3.1500000000000004 g (0.11 oz) |
| Diet | Critically endangered; feeds on mangrove flowers in Costa Rica and supplements with small insects and … | 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
Mangrove Hummingbird
Rich, melodic churring with complex cadence; warm resonant notes building in deliberate sequence near mangroves.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Mangrove Hummingbird
Endemic to the Pacific coast of Costa Rica, restricted to mangrove forests. 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
Mangrove Hummingbird
Allen's Hummingbird
How to Tell Them Apart
Mangrove Hummingbird
Coppery-tailed Coucal: dark brown above; rufous wings; pale below; coppery-glossed tail; red eye; tail iridescence distinctive
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Mangrove Hummingbird
A medium-sized hummingbird (10-11 cm) endemic to the Pacific coast of Costa Rica, restricted to mangrove forests. Green plumage. Nectarivore specializing in mangrove flowers (Pelliciera rhizophorae). Classified as Endangered due to mangrove habitat loss.
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.