Anna's Hummingbird vs Calliope Hummingbird
Calypte anna comparé à Selasphorus calliope
Side-by-Side Comparison
| Attribut | Anna's Hummingbird | Calliope Hummingbird |
|---|---|---|
| Nom scientifique | Calypte anna | Selasphorus calliope |
| Ordre | Caprimulgiformes | Caprimulgiformes |
| Famille | Trochilidae | Trochilidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | 10,0 cm (3.9 in) | — |
| Envergure | 12,0 cm (4.7 in) | 8,3 cm (3.3 in) |
| Poids | 4,3 g (0.15 oz) | 2,7633333333333336 g (0.10 oz) |
| Régime alimentaire | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Smallest breeding bird in North America; feeds on mountain meadow nectar and supplements with small … |
| Taille de la couvée | 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.
Calliope Hummingbird
Rough, coarse chatter with energetic delivery; rapid series of harsh notes tumbling quickly in vigorous exchange.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Calliope Hummingbird
Breeds in mountain meadows of western North America from British Columbia to Utah. Long-distance migrant wintering in Mexico.
Statut de conservation
Anna's Hummingbird
Calliope 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
Calliope Hummingbird
Violet-crowned Woodnymph: males with iridescent violet crown and gorget; metallic green above; females green above; spotted below
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.
Calliope Hummingbird
A tiny hummingbird (7-8 cm), the smallest breeding bird in the United States. Males have an iridescent magenta-pink gorget. Breeds in mountain meadows of the western US and Canada. Long-distance migrant to Mexico. Named for its resemblance to the beautiful Calliope of Greek mythology.