European Roller vs House Sparrow
Coracias garrulus comparé à Passer domesticus
Side-by-Side Comparison
| Attribut | European Roller | House Sparrow |
|---|---|---|
| Nom scientifique | Coracias garrulus | Passer domesticus |
| Ordre | Coraciiformes | Passeriformes |
| Famille | Coraciidae | Passeridae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | 31,0 cm (12.2 in) | 16,0 cm (6.3 in) |
| Envergure | 66,0 cm (26.0 in) | 25,0 cm (9.8 in) |
| Poids | 130,0 g (4.59 oz) | 30,0 g (1.06 oz) |
| Régime alimentaire | Large insects, especially beetles, grasshoppers, and crickets. Also takes small reptiles, frogs, and scorpions. Hunts … | Primarily seeds and grains, supplemented with insects during breeding season. Readily exploits human food scraps … |
| Taille de la couvée | 3-6 | 1-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
European Roller
Warm, dry, open country with scattered trees and nest holes. Breeds in tree cavities, earth banks, and nest boxes.
House Sparrow
Closely associated with human habitation. Found in cities, towns, farms, and any built environment. Rarely found far from people.
Song & Call Comparison
European Roller
A harsh, grating 'rack-rack' or 'quarrk' in flight. Gives a variety of sharp nasal calls at the nest. Not melodic; primary vocalizations are alarm and contact calls.
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
European Roller
Southern and eastern Europe, Central Asia, and North Africa. Winters in sub-Saharan Africa.
House Sparrow
Native to Europe, Asia, and North Africa. Introduced to every continent except Antarctica, making it the most widely distributed wild bird.
Statut de conservation
European Roller
House Sparrow
How to Tell Them Apart
European Roller
Turquoise-blue head, breast, and tail. Chestnut-brown back. Vivid ultramarine blue and black wing patches visible in flight.
Short, stout, dark 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
European Roller
The European roller gets its name from the spectacular rolling and tumbling aerial displays performed by males during courtship. It is the only roller species in Europe and one of the continent's most colorful birds. Declining across much of its western range due to agricultural intensification and habitat loss.
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.