Blue-mantled Thornbill vs Allen's Hummingbird
Chalcostigma stanleyi 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Blue-mantled Thornbill | Allen's Hummingbird |
|---|---|---|
| 学名 | Chalcostigma stanleyi | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 13.2 cm (5.2 in) | 8.1 cm (3.2 in) |
| 体重 | 5.2749999999999995 g (0.19 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore of Andean treeline scrub; visits Ericaceae and Brachyotum blooms. Supplements with small arthropods. | 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
Blue-mantled Thornbill
Crisp, whistled notes in ascending sequence; clean bright tones stepping up smoothly in cheerful morning delivery.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Blue-mantled Thornbill
Found in high Andean páramo from Colombia south through Ecuador and Peru to Bolivia. 3,000–4,500 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
Blue-mantled Thornbill
Allen's Hummingbird
How to Tell Them Apart
Blue-mantled Thornbill
Long-billed Starthroat: males glittering blue-green gorget; metallic green above; long bill; white pectoral tufts; females green with spots
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Blue-mantled Thornbill
コロンビアからボリビアのアンデスのパラモ（3,500〜4,800 m）の小型ハチドリ（10〜11 cm）。雄は青紫色の外套と短い嘴を持つ。高高度のチュキラガやプヤの花で花蜜を吸う。
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.