Cozumel Emerald vs Allen's Hummingbird
Cynanthus forficatus 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Cozumel Emerald | Allen's Hummingbird |
|---|---|---|
| 学名 | Cynanthus forficatus | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 8.1 cm (3.2 in) |
| 体重 | 2.5 g (0.09 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore specialising in tubular blossoms; supplements the floral nectar diet with tiny insects and spiders … | 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
Cozumel Emerald
Soft, high-pitched twittering barely audible; delicate minute notes cascading gently near flowering trees.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Cozumel Emerald
Endemic to Cozumel Island off the Yucatán Peninsula, Mexico. Classified as Vulnerable due to its tiny island range.
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
Cozumel Emerald
Allen's Hummingbird
How to Tell Them Apart
Cozumel Emerald
Edward's Hummingbird: males with iridescent blue gorget; metallic green above; white underparts; females green above; spotted below
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Cozumel Emerald
A medium-sized hummingbird (9-10 cm) endemic to Cozumel Island off the Yucatán Peninsula, Mexico. Green plumage with a forked tail. Nectarivore of the island's tropical forest and gardens. A very range-restricted island endemic. Classified as Vulnerable.
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.