Coppery Thorntail vs Allen's Hummingbird
Discosura letitiae 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Coppery Thorntail | Allen's Hummingbird |
|---|---|---|
| 学名 | Discosura letitiae | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Data Deficient | Least Concern |
| 体長 | — | — |
| 翼開長 | 7.5 cm (3.0 in) | 8.1 cm (3.2 in) |
| 体重 | 2.8 g (0.10 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore with elongated tail foraging at high canopy blooms. Catches small insects near flowering trees. | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 一腹卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Coppery Thorntail
Soft, high peep followed by short buzzy trill; quiet introductory note launching into brief rough continuation.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Coppery Thorntail
Known only from Bolivia; restricted range in humid lowland forest of the Beni region. 150–500 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
Coppery Thorntail
Allen's Hummingbird
About These Birds
Coppery Thorntail
A tiny hummingbird (7-8 cm) known from very few specimens collected in Bolivia. Coppery plumage. Almost nothing known about its ecology or current status. One of the most mysterious hummingbirds; possibly rare, possibly overlooked. Further fieldwork needed.
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.