Green-headed Hillstar vs Allen's Hummingbird
Oreotrochilus stolzmanni so với Selasphorus sasin
Side-by-Side Comparison
| Thuộc Tính | Green-headed Hillstar | Allen's Hummingbird |
|---|---|---|
| Tên Khoa Học | Oreotrochilus stolzmanni | Selasphorus sasin |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 14,5 cm (5.7 in) | 8,1 cm (3.2 in) |
| Khối Lượng | 8,016666666666667 g (0.28 oz) | 3,1500000000000004 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore of Peruvian high puna; visits Chuquiraga and Lupinus blooms. Supplements with small flies and … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Green-headed Hillstar only
Allen's Hummingbird only
Không
Song & Call Comparison
Green-headed Hillstar
Soft, pure descending whistle; gentle single note curving downward smoothly, warm and musical in quiet forest.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Green-headed Hillstar
Found on the western Andean slope and coastal desert hills of Peru at 1,500–3,600 m elevation.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Tình Trạng Bảo Tồn
Green-headed Hillstar
Allen's Hummingbird
About These Birds
Green-headed Hillstar
A medium-sized hummingbird (11-12 cm) found in the Andes of Peru and Ecuador at 2,800-4,200 m. Green plumage with a glittering green hood. Nectarivore of high-altitude shrubs and Puya plants. Closely related to Andean Hillstar. Sometimes considered conspecific.
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.