Tooth-billed Hummingbird vs Allen's Hummingbird
Androdon aequatorialis 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Tooth-billed Hummingbird | Allen's Hummingbird |
|---|---|---|
| 学名 | Androdon aequatorialis | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 13.6 cm (5.4 in) | 8.1 cm (3.2 in) |
| 体重 | 7.220000000000001 g (0.25 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore with serrated bill tip adapted for piercing tough flower bases of Heliconia and bromeliads. … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 一腹卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Tooth-billed Hummingbird
Thin, wavering whistle with plaintive tone; soft note trembling gently then fading, issued from shaded canopy perch.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Tooth-billed Hummingbird
Found in humid lowland forest on the Pacific slope from Panama south through Colombia to northwestern Ecuador. 0–600 m.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
保全状況
Tooth-billed Hummingbird
Allen's Hummingbird
How to Tell Them Apart
Tooth-billed Hummingbird
Narrow-tailed Emerald: metallic bronze-green upperparts; bright coppery rump; glittering violet gorget; buff-white underparts; narrow tail
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Tooth-billed Hummingbird
A unique medium-sized hummingbird (13-14 cm) with an upcurved, hook-tipped bill bearing tooth-like serrations, unique among hummingbirds. Dark green plumage. Found in humid Pacific lowland forests from Panama to western Ecuador. Nectarivore and insectivore. Poorly studied.
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.