Anna's Hummingbird vs Violet-capped Hummingbird
Calypte anna เปรียบเทียบกับ Goldmania violiceps
Side-by-Side Comparison
| คุณสมบัติ | Anna's Hummingbird | Violet-capped Hummingbird |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Calypte anna | Goldmania violiceps |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Least Concern | Near Threatened |
| ความยาว | 10.0 cm (3.9 in) | — |
| กว้างปีก | 12.0 cm (4.7 in) | 9.9 cm (3.9 in) |
| น้ำหนัก | 4.3 g (0.15 oz) | 3.8666666666666667 g (0.14 oz) |
| อาหาร | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on nectar from lowland Panamanian forest flowers. Supplements with insects and spiders foraged from … |
| จำนวนไข่ | 2 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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Anna's Hummingbird only
Violet-capped Hummingbird 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.
Violet-capped Hummingbird
Sharp, emphatic chip note with metallic ring; single clean staccato sound repeated at measured intervals.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Violet-capped Hummingbird
Found in humid forests from eastern Panama to northwestern Colombia. Resident in lowland forest undergrowth.
สถานะการอนุรักษ์
Anna's Hummingbird
Violet-capped Hummingbird
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
Violet-capped Hummingbird
Lesser Florican: males with black head and underparts; white wings and neck ruff; brown back; females sandy-brown; very dimorphic
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.
Violet-capped Hummingbird
A small hummingbird (9-10 cm) found in humid forests from eastern Panama to northwestern Colombia. Green plumage with a violet crown (males). Nectarivore of forest undergrowth and edges. Named after the American ornithologist William Goldman.