Anna's Hummingbird vs Violet-crowned Hummingbird
Calypte anna เปรียบเทียบกับ Leucolia violiceps
Side-by-Side Comparison
| คุณสมบัติ | Anna's Hummingbird | Violet-crowned Hummingbird |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Calypte anna | Leucolia violiceps |
| 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) | — |
| น้ำหนัก | 4.3 g (0.15 oz) | 5.433333333333333 g (0.19 oz) |
| อาหาร | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on floral nectar in forest understory, hovering at Heliconia and bromeliads. Supplements with spiders … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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Anna's Hummingbird only
Violet-crowned 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-crowned Hummingbird
Thin, reedy chip with soft quality; barely audible staccato note given from dense vegetative cover. Vocalization pattern typical of this species in its native habitat.
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-crowned Hummingbird
Found in arid to semi-humid habitats from the southwestern United States to central Mexico. Partial migrant.
สถานะการอนุรักษ์
Anna's Hummingbird
Violet-crowned 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-crowned Hummingbird
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-crowned Hummingbird
A medium-sized hummingbird (10-11 cm) found in arid to semi-humid habitats from the southwestern US to central Mexico. Males have a white breast and violet-blue crown. Nectarivore of oak woodland, desert oases, and gardens. Visits feeders in the southwestern US.