Anna's Hummingbird vs Eurasian Eagle-Owl
Calypte anna compared with Bubo bubo
Side-by-Side Comparison
| Attribute | Anna's Hummingbird | Eurasian Eagle-Owl |
|---|---|---|
| Scientific Name | Calypte anna | Bubo bubo |
| Order | Caprimulgiformes | Strigiformes |
| Family | Trochilidae | Strigidae |
| Conservation Status | Least Concern | Least Concern |
| Length | 10.0 cm (3.9 in) | 68.0 cm (26.8 in) |
| Wingspan | 12.0 cm (4.7 in) | 170.0 cm (66.9 in) |
| Weight | 4.3 g (0.15 oz) | 2800.0 g (98.77 oz) |
| Diet | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Mammals up to the size of hares and young foxes, and birds up to the … |
| Clutch Size | 2 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Shared Habitats
None
Anna's Hummingbird only
Eurasian Eagle-Owl only
Anna's Hummingbird
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
Eurasian Eagle-Owl
Rocky landscapes, cliffs, gorges, and open forest across Eurasia. Increasingly found near human settlements.
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.
Eurasian Eagle-Owl
Powerful, resonant 'ooo-hu' duetting with mate across great distances at dusk. One of Europe's deepest owl calls. Also gives barking screams, hisses, and grunts at the nest.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Eurasian Eagle-Owl
Widespread across Europe, Asia, and North Africa. The most widely distributed eagle-owl.
Conservation Status
Anna's Hummingbird
Eurasian Eagle-Owl
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
Eurasian Eagle-Owl
Tawny-brown plumage heavily mottled and streaked with black. Large prominent orange eyes and long ear tufts. Streaked breast and barred belly.
Powerful, dark grey-black hooked 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.
Eurasian Eagle-Owl
The Eurasian eagle-owl is one of the largest owl species in the world, with females sometimes reaching a wingspan of nearly two meters. Its deep booming call can be heard up to four kilometers away on calm nights. These apex predators sit at the top of the avian food chain, preying on other raptors including buzzards and smaller owls.