Anna's Hummingbird vs Hyacinth Visorbearer
Calypte anna เปรียบเทียบกับ Augastes scutatus
Side-by-Side Comparison
| คุณสมบัติ | Anna's Hummingbird | Hyacinth Visorbearer |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Calypte anna | Augastes scutatus |
| 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) | 10.7 cm (4.2 in) |
| น้ำหนัก | 4.3 g (0.15 oz) | 3.3 g (0.12 oz) |
| อาหาร | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Brazilian cerrado flowers, particularly Vellozia and Qualea. Catches small insects near rocky outcrops. |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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Anna's Hummingbird only
Hyacinth Visorbearer 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.
Hyacinth Visorbearer
Soft, pure sustained tone with gentle vibrato; single melodic note trembling slightly, typical of quiet upland forest perches.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Hyacinth Visorbearer
Endemic to the campo rupestre of the Espinhaço Range in Minas Gerais, Brazil. Found at 900–1,600 m elevation.
สถานะการอนุรักษ์
Anna's Hummingbird
Hyacinth Visorbearer
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
Hyacinth Visorbearer
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.
Hyacinth Visorbearer
A small hummingbird (8-9 cm) endemic to the highlands of southeastern Brazil, particularly Minas Gerais. Iridescent hyacinth-blue forehead visor and green plumage. Nectarivore of rocky campo rupestre habitats with sparse vegetation. Classified as Near Threatened.