Anna's Hummingbird vs Vervain Hummingbird
Calypte anna so với Mellisuga minima
Side-by-Side Comparison
| Thuộc Tính | Anna's Hummingbird | Vervain Hummingbird |
|---|---|---|
| Tên Khoa Học | Calypte anna | Mellisuga minima |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | 10,0 cm (3.9 in) | — |
| Chiều Dài Sải Cánh | 12,0 cm (4.7 in) | 7,3 cm (2.9 in) |
| Khối Lượng | 4,3 g (0.15 oz) | 2,174 g (0.08 oz) |
| Chế Độ Ăn | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on floral nectar in forest edges and gardens of Jamaica and Hispaniola. Supplements with … |
| Số Trứng | 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.
Vervain Hummingbird
Harsh, nasal chatter with emphatic rhythm; rough buzzy notes delivered rapidly with coarse texture from perch.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Vervain Hummingbird
Endemic to Jamaica and Hispaniola in the Caribbean. Resident in gardens, forest edges, and lowland to montane habitats.
Tình Trạng Bảo Tồn
Anna's Hummingbird
Vervain 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
Vervain 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.
Vervain Hummingbird
The second smallest bird in the world (6 cm, 2-2.4 g). Endemic to Jamaica and Hispaniola. Tiny green plumage with a short bill. Nectarivore of garden flowers and forest edges. Named vervain for its preference for Stachytarpheta (vervain) flowers. Weighs less than a penny.