Anna's Hummingbird vs Crimson Topaz
Calypte anna เปรียบเทียบกับ Topaza pella
Side-by-Side Comparison
| คุณสมบัติ | Anna's Hummingbird | Crimson Topaz |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Calypte anna | Topaza pella |
| 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) | 15.0 cm (5.9 in) |
| น้ำหนัก | 4.3 g (0.15 oz) | 12.625 g (0.45 oz) |
| อาหาร | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore and insectivore; extracts nectar from trap-lining flowers and hawks small flying insects in forest … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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.
Crimson Topaz
Rough, raspy chatter with intermittent clear whistles; complex mix of harsh and musical notes characteristic of active pairs.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Crimson Topaz
Found in the Guiana Shield and Amazon basin from Colombia and Venezuela south to Peru and Brazil. Resident near rivers in lowland forest.
สถานะการอนุรักษ์
Anna's Hummingbird
Crimson Topaz
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
Crimson Topaz
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.
Crimson Topaz
A spectacular, large hummingbird (18-20 cm including long tail) of northern South America. Male has glittering crimson-red throat and breast with a golden-green back. The largest hummingbird in its range. Nectarivore of lowland tropical forest canopy, visiting large flowers. Found in Venezuela, the Guianas, and northern Brazil.