About the Wren
The Wren (Troglodytes troglodytes) may be tiny, but it certainly doesn’t sound it. One of the smallest birds found in the UK and Ireland, the Wren has a compact, rounded body, warm brown plumage covered with fine darker markings and a short tail that is often held upright. Its fine, pointed bill is perfectly suited to picking tiny insects from among leaves and vegetation.
Wrens are common in gardens, woodland, hedgerows and scrub, especially where there is plenty of dense cover. They spend much of their time darting through low vegetation, searching for food in places where larger birds struggle to reach.
For such a small bird, the Wren has an impressively powerful voice. Its rapid, energetic song can carry surprisingly far and is often one of the easiest ways to discover that a Wren is nearby.
Food for Wrens
Wrens mainly eat insects, spiders and other small invertebrates. They search close to the ground, exploring leaf litter, shrubs, walls and dense vegetation for tiny creatures hiding among the leaves and crevices.
In the garden, mealworms can provide a useful supplementary food, particularly during colder weather when natural insect food is harder to find. Wrens usually prefer feeding close to cover rather than visiting exposed hanging feeders, so a ground feeding tray or sheltered bird table can be a better option.
You can also help naturally by leaving some leaf litter beneath shrubs, planting densely and avoiding making every corner of the garden too tidy. These miniature wild spaces can become excellent hunting grounds for insects.
Nesting habitats for Wrens
Wrens usually build small, domed nests in sheltered places such as dense shrubs, ivy, hedges, tree roots and other hidden crevices. The male often builds several potential nests, with the female choosing which one to use.
Unlike many small garden birds, Wrens do not need a nest box with a traditional round entrance hole. They may use an open-fronted or specially designed Wren nest box when it is positioned in a quiet, well-concealed spot among dense vegetation.
Wrens also sometimes use nest boxes as communal winter roosts. In cold weather, several birds may squeeze together for warmth, with exceptional cases involving dozens of Wrens sharing the same box.
Dense hedges, climbing plants and slightly wilder garden corners provide Wrens with valuable nesting cover, natural food and shelter throughout the year.
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Facts
| Scientific name |
Troglodytes troglodytes
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|---|---|
| Family |
Troglodytidae
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| Habitat |
Wrens live in woodland, hedgerows, scrub, gardens and parks, favouring places with dense low vegetation and plenty of sheltered nooks and crannies. Brambles, ivy, fallen branches, roots and leaf litter all provide useful places to forage and hide. Wrens can be seen throughout the year.
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| Food |
Wrens mainly eat insects, spiders, larvae and other tiny invertebrates that they find among vegetation, leaf litter and crevices. In colder weather, garden visitors may take mealworms and suitable soft bird food offered close to sheltered cover.
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| Length |
9-10cm
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| Weight |
7-12g
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| Lifespan |
1 - 6 years
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| Breeding season |
April-July
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| Nest |
Wrens build small, domed nests in dense vegetation, ivy, tree roots, banks, walls and other sheltered crevices. Males often construct several potential nests before the female chooses one. Wrens may also use a well-concealed open-fronted or specially designed Wren nest box.
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| Song and call |
The Wren has an extraordinarily loud song for such a tiny bird. It is a rapid burst of ringing notes and trills, often with a distinctive rattling section in the middle. Its alarm call is a sharp, repeated ticking or scolding sound.
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| Identification |
Wrens are tiny, compact birds with warm brown plumage, fine darker barring and a short tail that is often held upright. They have a slender pointed bill and a pale eyebrow stripe. Males and females look alike.
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| Broods |
5–8 white eggs with fine reddish-brown speckles. Usually 2 broods in a season.
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Frequently asked questions about wrens
Is the wren the smallest bird in the UK?
No. The goldcrest is slightly smaller than the wren and is generally recognised as the UK's smallest bird.
Do wrens breed in nest boxes?
Sometimes. Wrens usually build their own domed nests in dense vegetation, but specially designed wren boxes placed low and well hidden may be used.
Why does the male wren build several nests?
Male wrens build several incomplete nests as part of courtship. A female inspects them and chooses one to finish and use for breeding.
How do wrens survive harsh winters?
Wrens shelter in dense vegetation, cavities and other protected places. During very cold weather, several birds may roost together to conserve warmth.