Anna's Hummingbird vs Gavião-real
Calypte anna comparado com Harpia harpyja
Side-by-Side Comparison
| Atributo | Anna's Hummingbird | Gavião-real |
|---|---|---|
| Nome científico | Calypte anna | Harpia harpyja |
| Ordem | Caprimulgiformes | Accipitriformes |
| Família | Trochilidae | Accipitridae |
| Estado de conservação | Least Concern | Vulnerable |
| Comprimento | 10,0 cm (3.9 in) | 100,0 cm (39.4 in) |
| Envergadura | 12,0 cm (4.7 in) | 200,0 cm (78.7 in) |
| Peso | 4,3 g (0.15 oz) | 7500,0 g (264.55 oz) |
| Dieta | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … |
| Tamanho da postura | 2 | 2-3 |
| 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.
Gavião-real
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
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.
Gavião-real
Rarely heard; emits mournful whistled screams 'wheee-oo' and low croaking grunts near the nest. Vocalizations poorly documented given its remote Amazonian habitat.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Gavião-real
Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.
Estado de conservação
Anna's Hummingbird
Gavião-real
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
Gavião-real
Slate-black upperparts and head with a pale grey breast and white underparts with black barring. A distinctive split grey crest rises when the bird is alarmed.
Massive dark hooked bill, one of the largest of any eagle
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.
Gavião-real
The harpy eagle is among the most powerful raptors in the world, with talons as large as a grizzly bear's claws. It is the national bird of Panama. Deforestation poses the greatest threat to this species, as each breeding pair requires a vast territory of undisturbed forest.