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Wren

Wrens are small, active passerine birds in the family Troglodytidae, known for their brown plumage, cocked tails, and loud songs.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Wrens are small, active passerine birds in the family Troglodytidae, known for their brown plumage, cocked tails, and loud songs. Most wren species are found in the Americas, while the Eurasian wren (Troglodytes troglodytes) is the best-known Old World representative. Several wren species occur in Canada, including the house wren in southern Canada.

Taxonomy and classification

Wrens belong to the family Troglodytidae within the order Passeriformes. Sources differ slightly on the total number of species and genera, reflecting ongoing taxonomic revisions. Depending on the source and classification used, wrens comprise about 85 to 96 species.

Physical characteristics

Wrens are typically very small, brown birds with fine bills, short wings, and a short tail that is often held upright. Many species have a rounded body shape and conspicuous vocal output despite their size. Their compact build and sharp bills are characteristic features.

Distribution and habitat

Wrens occur mainly in the Americas, with the Eurasian wren as the main exception outside the New World. They occupy habitats such as woodland, undergrowth, gardens, farmland, and brushy or marshy areas. Most wren species live in the Western Hemisphere, especially North and South America.

Behaviour and diet

Wrens are active, ground-foraging birds that mainly eat insects and spiders. Some species also eat berries and seeds. They are also noted for their loud, penetrating songs and, in many species, their tendency to nest in sheltered cavities or domed structures. Many species are adaptable to gardens and human-altered habitats.

Key facts

  • Wrens are a family of small passerine birds with about 85–96 species, depending on the source and classification used.
  • Most wren species live in the Western Hemisphere, especially North and South America.
  • The Eurasian wren is the only widely distributed wren species in the Old World.
  • Wrens forage low to the ground and often nest in holes, thickets, or domed nests.
  • Many species are adaptable to gardens and human-altered habitats.
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Canadian context

Wrens are relevant to Canadian readers because several species occur in Canada, including the house wren in southern Canada, and the northern house wren has a range that includes much of the country.

Frequently asked questions

What is a wren?
A wren is a small bird in the family Troglodytidae, usually brown, active, and known for a loud song.
Where are wrens found?
Most wrens live in the Americas, while the Eurasian wren is found across much of Europe and parts of Asia.
What do wrens eat?
Wrens mainly eat insects and spiders, and some species also take berries and seeds.
How many species of wrens are there?
Sources cited here give totals ranging from about 85 to 96 species, because bird taxonomy is sometimes revised.
Are wrens common garden birds?
Yes. The Eurasian wren is a common garden bird in the UK, and some New World wrens also adapt well to gardens.
Why are wrens known for their songs?
Wrens are small birds with unusually loud, complex songs, which they use in territorial and mating behaviour.

References

  1. Britannica Kidshttps://kids.britannica.com/students/article/wren/277802
    Supports: Family Troglodytidae, Western Hemisphere origin, one Old World species, general appearance, diet, nesting, and song.
  2. Woodland Trusthttps://www.woodlandtrust.org.uk/trees-woods-and-wildlife/animals/birds/wren/
    Supports: Scientific name Troglodytes troglodytes, habitat, diet, appearance, and UK distribution.
  3. RSPBhttps://www.rspb.org.uk/birds-and-wildlife/wren
    Supports: UK commonness, physical description, vocalization, and conservation status context.
  4. Pennsylvania Game Commissionhttps://www.pa.gov/agencies/pgc/wildlife/discover-pa-wildlife/wrens
    Supports: Family Troglodytidae, general behaviour, habitat use, and dietary habits.
  5. Cornell Lab of Ornithologyhttps://www.allaboutbirds.org/guide/Northern_House_Wren/overview
    Supports: Northern House Wren range including southern Canada and general species description.