Eurasian Wren vs House Sparrow
Troglodytes troglodytes compared with Passer domesticus
Side-by-Side Comparison
| Attribute | Eurasian Wren | House Sparrow |
|---|---|---|
| Scientific Name | Troglodytes troglodytes | Passer domesticus |
| Order | Passeriformes | Passeriformes |
| Family | Troglodytidae | Passeridae |
| Conservation Status | Least Concern | Least Concern |
| Length | 9.5 cm (3.7 in) | 16.0 cm (6.3 in) |
| Wingspan | 15.0 cm (5.9 in) | 25.0 cm (9.8 in) |
| Weight | 9.0 g (0.32 oz) | 30.0 g (1.06 oz) |
| Diet | Insects and spiders, gleaned from dense vegetation, rock crevices, and bark. Active and restless forager. | Primarily seeds and grains, supplemented with insects during breeding season. Readily exploits human food scraps … |
| Clutch Size | 3-9 | 1-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Eurasian Wren
Dense undergrowth in woodlands, gardens, hedgerows, and rocky areas. Prefers tangled vegetation close to the ground.
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 Wren
Extraordinarily loud for its tiny size: a rapid, powerful stream of trills, buzzes, and churring phrases. One of Europe's loudest songs by volume relative to body weight.
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 Wren
Eurasia from Iceland and western Europe to Japan. The only wren species found outside the Americas.
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 Wren
House Sparrow
How to Tell Them Apart
Eurasian Wren
Warm rufous-brown upperparts with fine dark barring. Pale buffy underparts with barred flanks. Short, often cocked tail.
Thin, slightly curved, dark brown 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 Wren
The Eurasian wren is one of the smallest birds in Europe but possesses an astonishingly loud song for its size. Males build multiple dome-shaped nests, from which the female selects one to line and use. In British folklore, the wren is known as the king of birds for outwitting the eagle in a flying contest.
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.