Eurasian Wren vs Snowy Owl
Troglodytes troglodytes compared with Bubo scandiacus
Side-by-Side Comparison
| Attribute | Eurasian Wren | Snowy Owl |
|---|---|---|
| Scientific Name | Troglodytes troglodytes | Bubo scandiacus |
| Order | Passeriformes | Strigiformes |
| Family | Troglodytidae | Strigidae |
| Conservation Status | Least Concern | Vulnerable |
| Length | 9.5 cm (3.7 in) | 63.0 cm (24.8 in) |
| Wingspan | 15.0 cm (5.9 in) | 145.0 cm (57.1 in) |
| Weight | 9.0 g (0.32 oz) | 2100.0 g (74.08 oz) |
| Diet | Insects and spiders, gleaned from dense vegetation, rock crevices, and bark. Active and restless forager. | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … |
| Clutch Size | 3-9 | 3-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Eurasian Wren
Dense undergrowth in woodlands, gardens, hedgerows, and rocky areas. Prefers tangled vegetation close to the ground.
Snowy Owl
Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.
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.
Snowy Owl
Male gives a deep booming hoot 'hooooo' and a rising 'hoo-hoo' series. Also barks sharply when alarmed. Quieter than many owls; silent during long Arctic winter hunts.
Geographic Range & Migration
Eurasian Wren
Eurasia from Iceland and western Europe to Japan. The only wren species found outside the Americas.
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
Conservation Status
Eurasian Wren
Snowy Owl
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
Snowy Owl
Adult males are almost entirely white. Females and immatures have dark brown barring and spotting. Yellow eyes and fully feathered feet.
Dark hooked bill mostly hidden by dense facial feathering
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.
Snowy Owl
The snowy owl is the heaviest North American owl and one of the most charismatic Arctic birds. Unlike most owls, it is largely diurnal, necessitated by the continuous daylight of Arctic summers. Snowy owl irruptions — periodic mass southward movements — are tied to lemming population cycles.