Anna's Hummingbird vs Scissor-tailed Hummingbird
Calypte anna เปรียบเทียบกับ Hylonympha macrocerca
Side-by-Side Comparison
| คุณสมบัติ | Anna's Hummingbird | Scissor-tailed Hummingbird |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Calypte anna | Hylonympha macrocerca |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Least Concern | Endangered |
| ความยาว | 10.0 cm (3.9 in) | — |
| กว้างปีก | 12.0 cm (4.7 in) | 13.3 cm (5.2 in) |
| น้ำหนัก | 4.3 g (0.15 oz) | 7.25 g (0.26 oz) |
| อาหาร | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Venezuelan cloud forest; visits Ericaceae and diverse forest flowers. Catches small insects near … |
| จำนวนไข่ | 2 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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Anna's Hummingbird only
Scissor-tailed 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.
Scissor-tailed Hummingbird
Sharp, emphatic chip note repeated rapidly; clean staccato delivery with rising intensity during territorial display.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Scissor-tailed Hummingbird
Endemic to the Paria Peninsula of northeastern Venezuela in cloud forest at 700–1,200 m. Critically endangered.
สถานะการอนุรักษ์
Anna's Hummingbird
Scissor-tailed 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
Scissor-tailed Hummingbird
Gorgeted Woodstar (alt): males with iridescent blue gorget; metallic green body; white pectoral tufts; females green above; spotted
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.
Scissor-tailed Hummingbird
A medium-sized hummingbird (11-12 cm plus elongated tail in males, total 18-20 cm) endemic to the Paria Peninsula of northeastern Venezuela. Males have deeply forked, scissor-like tail streamers. Nectarivore of humid montane forest. Classified as Endangered.