Anna's Hummingbird vs Green-breasted Mountain-gem
Calypte anna compared with Lampornis sybillae
Side-by-Side Comparison
| Attribute | Anna's Hummingbird | Green-breasted Mountain-gem |
|---|---|---|
| Scientific Name | Calypte anna | Lampornis sybillae |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Least Concern | Least Concern |
| Length | 10.0 cm (3.9 in) | — |
| Wingspan | 12.0 cm (4.7 in) | 12.8 cm (5.0 in) |
| Weight | 4.3 g (0.15 oz) | 5.975 g (0.21 oz) |
| Diet | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Nicaraguan montane forest; visits Ericaceae and Heliconia blooms. Supplements with small arthropods. |
| Clutch Size | 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.
Green-breasted Mountain-gem
Soft, high squeak followed by buzzy trill; brief introductory note launching into rough cascade of chips.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Green-breasted Mountain-gem
Found in cloud forest of Nicaragua and Honduras in highland forest. 1,000–2,400 m elevation.
Conservation Status
Anna's Hummingbird
Green-breasted Mountain-gem
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
Green-breasted Mountain-gem
Selasphorus Hummingbird: males with iridescent purple gorget; metallic bronze-green above; white underparts; females green above; spots
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.
Green-breasted Mountain-gem
A medium-sized hummingbird (10-11 cm) endemic to the highlands of Honduras and Nicaragua at 1,500-2,400 m. Males have a green breast. Nectarivore of cloud forest. A rare Central American endemic restricted to the nuclear highlands. Classified as Vulnerable.