Violet-throated Metaltail vs Allen's Hummingbird
Metallura baroni 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Violet-throated Metaltail | Allen's Hummingbird |
|---|---|---|
| 学名 | Metallura baroni | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 11.4 cm (4.5 in) | 8.1 cm (3.2 in) |
| 体重 | 4.4 g (0.16 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore of Ecuadorian treeline vegetation; specialized for Ericaceae blooms above 3000 m. Catches small arthropods. | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Violet-throated Metaltail
Melodic, flute-like phrase with clear quality; smooth notes flowing pleasantly in quiet sequence at forest edge.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Violet-throated Metaltail
Endemic to a tiny area in the Cajas plateau region of southwestern Ecuador. 3,000–4,200 m. Critically endangered.
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
Violet-throated Metaltail
Allen's Hummingbird
How to Tell Them Apart
Violet-throated Metaltail
Green-throated Mountain-gem: males with glittering green gorget; metallic green above; white underparts; females 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
Violet-throated Metaltail
エクアドルの限られた高地にのみ生息するビリジアンメタルテイルハチドリ。体長9〜11cm。雄の輝く緑色の羽毛が特徴的。高山の花の蜜を主食とする。絶滅危惧種。
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.