Eurasian Eagle-Owl vs House Sparrow
Bubo bubo compared with Passer domesticus
Side-by-Side Comparison
| Attribute | Eurasian Eagle-Owl | House Sparrow |
|---|---|---|
| Scientific Name | Bubo bubo | Passer domesticus |
| Order | Strigiformes | Passeriformes |
| Family | Strigidae | Passeridae |
| Conservation Status | Least Concern | Least Concern |
| Length | 68.0 cm (26.8 in) | 16.0 cm (6.3 in) |
| Wingspan | 170.0 cm (66.9 in) | 25.0 cm (9.8 in) |
| Weight | 2800.0 g (98.77 oz) | 30.0 g (1.06 oz) |
| Diet | Mammals up to the size of hares and young foxes, and birds up to the … | Primarily seeds and grains, supplemented with insects during breeding season. Readily exploits human food scraps … |
| Clutch Size | 2-4 | 1-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Eurasian Eagle-Owl
Rocky landscapes, cliffs, gorges, and open forest across Eurasia. Increasingly found near human settlements.
House Sparrow
Closely associated with human habitation. Found in cities, towns, farms, and any built environment. Rarely found far from people.
Song & Call Comparison
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.
House Sparrow
Monotonous series of chirping 'cheep' and 'chirrup' notes. Male gives 'chilp' song repeatedly. Flocks produce constant chirping chatter. No melodic song; purely functional calls.
Geographic Range & Migration
Eurasian Eagle-Owl
Widespread across Europe, Asia, and North Africa. The most widely distributed eagle-owl.
House Sparrow
Native to Europe, Asia, and North Africa. Introduced to every continent except Antarctica, making it the most widely distributed wild bird.
Conservation Status
Eurasian Eagle-Owl
House Sparrow
How to Tell Them Apart
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
House Sparrow
Males have grey crowns, chestnut napes, black bibs, and streaked brown backs. Females and juveniles are plain buffy-brown with a pale eyebrow stripe.
Short, stout, conical bill — black in breeding males, yellowish in non-breeding
About These Birds
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.
House Sparrow
The house sparrow is perhaps the most successful bird in the world at living alongside humans. Introduced to New York in 1851, it spread across North America within decades. Despite its global abundance, house sparrow populations have declined significantly in parts of western Europe.