Viridian Metaltail vs Allen's Hummingbird
Metallura williami 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Viridian Metaltail | Allen's Hummingbird |
|---|---|---|
| 学名 | Metallura williami | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 11.5 cm (4.5 in) | 8.1 cm (3.2 in) |
| 体重 | 4.6 g (0.16 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore of Ecuadorian and Colombian montane shrubs; visits Brachyotum and Ericaceae. Gleans tiny insects from … | 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
Viridian Metaltail
Sharp, emphatic chip repeated rapidly; clean staccato note with forceful attack given insistently near territory.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Viridian Metaltail
Found in cloud forests and páramo of Colombia and Ecuador on both Andean slopes. 2,400–4,000 m elevation.
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
Viridian Metaltail
Allen's Hummingbird
How to Tell Them Apart
Viridian Metaltail
Blue-throated Mountain-gem: tiny; males with brilliant blue gorget; metallic green above; white underparts; females green above; spots
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Viridian Metaltail
エクアドルとコロンビアのアンデス高地に生息するビラウィリアムズメタルテイルハチドリ。体長10〜12cm。鮮やかな緑色の羽毛が特徴的。高山の花の蜜を主食とする。低危険種。
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.