Anna's Hummingbird vs Golden Starfrontlet
Calypte anna comparado com Coeligena eos
Side-by-Side Comparison
| Atributo | Anna's Hummingbird | Golden Starfrontlet |
|---|---|---|
| Nome científico | Calypte anna | Coeligena eos |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Trochilidae | Trochilidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | 10,0 cm (3.9 in) | — |
| Envergadura | 12,0 cm (4.7 in) | 14,1 cm (5.6 in) |
| Peso | 4,3 g (0.15 oz) | 6,599999999999999 g (0.23 oz) |
| Dieta | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Colombian Pacific slope; visits Ericaceae and Heliconia in wet montane forest. Supplements with … |
| Tamanho da postura | 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.
Golden Starfrontlet
Rough, buzzy trill with scratchy edge; coarse sustained notes with raw texture carrying across Andean scrub.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Golden Starfrontlet
Found in cloud forests of northeastern Colombia and adjacent northwestern Venezuela. 1,600–2,800 m. Uncommon.
Estado de conservação
Anna's Hummingbird
Golden Starfrontlet
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
Golden Starfrontlet
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.
Golden Starfrontlet
A medium-sized hummingbird (13-14 cm) endemic to the eastern Andes of Colombia at 2,500-3,500 m. Males have golden-orange plumage, unusual among Coeligena hummingbirds. Nectarivore of cloud forest. Classified as Endangered due to small range and habitat loss.