White-bellied Mountain-gem vs Allen's Hummingbird
Lampornis hemileucus so với Selasphorus sasin
Side-by-Side Comparison
| Thuộc Tính | White-bellied Mountain-gem | Allen's Hummingbird |
|---|---|---|
| Tên Khoa Học | Lampornis hemileucus | Selasphorus sasin |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 12,5 cm (4.9 in) | 8,1 cm (3.2 in) |
| Khối Lượng | 5,6000000000000005 g (0.20 oz) | 3,1500000000000004 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore of montane forest understory and edges; visits Ericaceae and Salvia blooms. Gleans small insects … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| Số Trứng | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-bellied Mountain-gem
Melodic, two-note falling whistle; pure warm tones descending gently, given repeatedly from prominent perch.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
White-bellied Mountain-gem
Found in highland forest of Costa Rica and Panama on both slopes in cloud forest. 800–2,000 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
White-bellied Mountain-gem
Allen's Hummingbird
About These Birds
White-bellied Mountain-gem
A medium-sized hummingbird (11-12 cm) endemic to the highlands of Costa Rica and western Panama at 1,200-2,500 m. Males green with white belly. Nectarivore of cloud forest and forest edges. One of several mountain-gem species endemic to Central American highlands.
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.