Rufous-tailed Hummingbird vs Allen's Hummingbird
Amazilia tzacatl 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Rufous-tailed Hummingbird | Allen's Hummingbird |
|---|---|---|
| 学名 | Amazilia tzacatl | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 11.3 cm (4.4 in) | 8.1 cm (3.2 in) |
| 体重 | 5.04 g (0.18 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Common lowland nectarivore of Central America; visits Heliconia, banana, and garden flowers. Supplements with insects … | 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
Rufous-tailed Hummingbird
Deep, resonant trill with buzzing character; powerful churring vibration carrying across open hillside.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Rufous-tailed Hummingbird
Widely distributed from Mexico through Central America to western Ecuador. Resident in varied lowland habitats.
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
Rufous-tailed Hummingbird
Allen's Hummingbird
How to Tell Them Apart
Rufous-tailed Hummingbird
Rufous Coucal: entirely rufous-brown overall; long dark graduated tail; red eye; monochromatic rufous plumage; sexually similar
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Rufous-tailed Hummingbird
メキシコから南米北西部にかけて広く分布するハチドリ（体長9〜11cm）。金属光沢のある緑色の体と赤褐色の尾羽が特徴。Amazilia tzacatl（ルーフォウステイルドアマゾンハチドリ）は標高0〜2,500mの熱帯・亜熱帯林縁、庭園、農地に生息し、様々な花の蜜を吸う。中央アメリカで最もよく見られるハチドリの一つ。Trochilidae科。
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.