Anna's Hummingbird vs Buff-tailed Sicklebill
Calypte anna เปรียบเทียบกับ Eutoxeres condamini
Side-by-Side Comparison
| คุณสมบัติ | Anna's Hummingbird | Buff-tailed Sicklebill |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Calypte anna | Eutoxeres condamini |
| 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) | 13.7 cm (5.4 in) |
| น้ำหนัก | 4.3 g (0.15 oz) | 9.98 g (0.35 oz) |
| อาหาร | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectar and arthropod feeder; hovers to extract nectar from pendant flowers and snatches small insects … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
ไม่มี
Anna's 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.
Buff-tailed Sicklebill
Sharp, scratchy chip note repeated rapidly; dry staccato delivery with rough texture, audible during competitive interactions.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Buff-tailed Sicklebill
Found in the eastern Andes from Colombia and Ecuador south to Bolivia at 400–1,500 m. Resident in forest undergrowth at Heliconia flowers.
สถานะการอนุรักษ์
Anna's Hummingbird
Buff-tailed Sicklebill
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
Buff-tailed Sicklebill
Green-bronze upperparts; buff and dark brown heavily streaked underparts; buff-tipped tail feathers; strongly sickle-shaped curved bill; sexes similar; buff tail tips distinguish from White-tipped Sicklebill; Andean foothills specialist.
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.
Buff-tailed Sicklebill
A medium-sized hummingbird (12-14 cm) with a strongly decurved bill for feeding on curved tropical flowers. Green plumage with a buff-tipped tail. Found in Andean foothill forests from Colombia to Bolivia. A specialized nectarivore of Heliconia and related plants.