Rainbow-bearded Thornbill vs Allen's Hummingbird
Chalcostigma herrani 对比 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Rainbow-bearded Thornbill | Allen's Hummingbird |
|---|---|---|
| 学名 | Chalcostigma herrani | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 13.5 cm (5.3 in) | 8.1 cm (3.2 in) |
| 体重 | 6.183333333333334 g (0.22 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore of Colombian and Venezuelan montane scrub; visits diverse small flowers. Supplements with small insects. | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 产卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Rainbow-bearded Thornbill
Thin, reedy trill with wavering quality; soft rapid notes with gentle tremolo effect, given from dense cover.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Rainbow-bearded Thornbill
Found in high Andean páramo and shrubby forest edge from Colombia south to Ecuador and Peru. 2,600–4,400 m.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
保护状况
Rainbow-bearded Thornbill
Allen's Hummingbird
How to Tell Them Apart
Rainbow-bearded Thornbill
Snowcap: males with brilliant iridescent blue-violet gorget; snow-white crown; metallic green above; 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
Rainbow-bearded Thornbill
彩喉金刚尾蜂鸟 (Chalcostigma herrani)，体长约13厘米。雄鸟喉部具彩虹色斑，上体绿色，尾长而分叉。分布于哥伦比亚和厄瓜多尔安第斯山脉高海拔地带。栖息于高山草甸和灌丛。以花蜜为主食。
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.