Anna's Hummingbird vs Koepcke's Hermit
Calypte anna compared with Phaethornis koepckeae
Side-by-Side Comparison
| Attribute | Anna's Hummingbird | Koepcke's Hermit |
|---|---|---|
| Scientific Name | Calypte anna | Phaethornis koepckeae |
| 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) | 12.1 cm (4.8 in) |
| Weight | 4.3 g (0.15 oz) | 4.95 g (0.17 oz) |
| Diet | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore specializing in Heliconia and other curved tubular flowers. Supplements diet with small spiders and … |
| 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.
Koepcke's Hermit
Deep, hollow churr with resonant quality; prolonged buzzing trill carrying well through dense forest at low frequency.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Koepcke's Hermit
Endemic to Peru in the Ucayali and Madre de Dios drainages. Found in lowland and foothill forest at 200–700 m elevation.
Conservation Status
Anna's Hummingbird
Koepcke's Hermit
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
Koepcke's Hermit
Little Hermit: glittering green crown; pale buff underparts; white pectoral tufts; white postocular stripe; tiny size; decurved bill
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.
Koepcke's Hermit
A medium-sized hermit hummingbird (13-14 cm) endemic to the eastern slopes of the Peruvian Andes at 800-1,500 m. Green plumage with rufous underparts. Named after Maria Koepcke, a German-Peruvian ornithologist. Classified as Near Threatened due to limited range.