Buff-tailed Coronet vs Allen's Hummingbird
Boissonneaua flavescens 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Buff-tailed Coronet | Allen's Hummingbird |
|---|---|---|
| 学名 | Boissonneaua flavescens | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 15.0 cm (5.9 in) | 8.1 cm (3.2 in) |
| 体重 | 8.033333333333333 g (0.28 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore of Andean cloud forest; visits Ericaceae and Fuchsia blooms. Aggressively defends territories; gleans small … | 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
Buff-tailed Coronet
Soft, pure descending whistle; gentle note curving downward smoothly, warm and musical in cloud forest quiet.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Buff-tailed Coronet
Found in Andean cloud forests from Venezuela south through Colombia, Ecuador, and Peru to Bolivia. 1,600–3,000 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
Buff-tailed Coronet
Allen's Hummingbird
How to Tell Them Apart
Buff-tailed Coronet
White-bearded Helmetcrest: males with glittering blue-violet gorget; metallic green; white beard; white leg puffs; females plain green
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Buff-tailed Coronet
ベネズエラからペルーにかけてのアンデス雲霧林の標高1,500〜3,000mに生息する中型のハチドリ（11〜12cm）。緑の羽毛と黄橙色の尾を持つ。山地林と林縁の蜜食者。頭冠の緑色の虹彩光によりコロネットの名が付く。
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.