Anna's Hummingbird vs Purple-throated Mountain-gem
Calypte anna เปรียบเทียบกับ Lampornis calolaemus
Side-by-Side Comparison
| คุณสมบัติ | Anna's Hummingbird | Purple-throated Mountain-gem |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Calypte anna | Lampornis calolaemus |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 10.0 cm (3.9 in) | — |
| กว้างปีก | 12.0 cm (4.7 in) | 12.5 cm (4.9 in) |
| น้ำหนัก | 4.3 g (0.15 oz) | 5.625 g (0.20 oz) |
| อาหาร | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Costa Rican highlands; visits Ericaceae and Fuchsia blooms. Catches small insects near flowering … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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Anna's Hummingbird only
Purple-throated Mountain-gem only
Anna's Hummingbird
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
Song & Call Comparison
Anna's Hummingbird
Male produces a complex, scratchy song with buzzy 'dzzzzt' notes. Gives a nasal 'chee-chee-chee'. Males sing year-round, even in winter; one of few hummingbirds with true song.
Purple-throated Mountain-gem
Melodic, rolling phrase with rich warm timbre; bubbly musical notes tumbling pleasantly in relaxed sequence.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Purple-throated Mountain-gem
Found in highland forest from Costa Rica and Nicaragua to Guatemala and Honduras. 600–2,400 m.
สถานะการอนุรักษ์
Anna's Hummingbird
Purple-throated Mountain-gem
How to Tell Them Apart
Anna's Hummingbird
Metallic bronze-green upperparts. Males have an iridescent rose-red crown and gorget. Females have green upperparts with grey underparts and a small red gorget patch.
Medium-length, straight, thin black bill
Purple-throated Mountain-gem
Broad-tailed Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white flanks; females plain green; spots
About These Birds
Anna's Hummingbird
Anna's hummingbird is the most common hummingbird along the Pacific coast and one of only three species resident in the United States year-round. Males perform spectacular dive displays, plummeting from 40 meters and pulling up with a loud chirp produced by tail feathers. Their body temperature can drop to near ambient at night to conserve energy.
Purple-throated Mountain-gem
A medium-sized hummingbird (10-11 cm) found in cloud forests of Nicaragua, Costa Rica, and western Panama at 800-2,000 m. Males have a brilliant purple throat. Nectarivore of cloud forest and forest edges. Common at highland feeders in Costa Rica.