Anna's Hummingbird vs Hispaniolan Emerald
Calypte anna compared with Riccordia swainsonii
Side-by-Side Comparison
| Attribute | Anna's Hummingbird | Hispaniolan Emerald |
|---|---|---|
| Scientific Name | Calypte anna | Riccordia swainsonii |
| 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) | — |
| Weight | 4.3 g (0.15 oz) | 3.75 g (0.13 oz) |
| Diet | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on nectar from Hispaniolan forest flowers and garden plants. Supplements diet with small insects … |
| Clutch Size | 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.
Hispaniolan Emerald
Sharp, emphatic two-syllable whistle; first note high and accented, second falling softly, repeated clearly.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Hispaniolan Emerald
Endemic to Hispaniola (Dominican Republic and Haiti). Resident across the island in forests, gardens, and plantations.
Conservation Status
Anna's Hummingbird
Hispaniolan Emerald
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
Hispaniolan Emerald
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.
Hispaniolan Emerald
A medium-sized hummingbird (10-11 cm) endemic to Hispaniola (Dominican Republic and Haiti). Bright green plumage with a dark auricular patch and pale breast. Nectarivore of forests, gardens, and coffee plantations. The most widespread hummingbird on Hispaniola.