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Bird name:


Troglodytes troglodytes




Wrens (Troglodytidae)





Euring 5

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Breeding Location:

Moorland, Gardens, Fields, agricultural, Woodlands

Breeding Type:

Monogamous, Polygamous

Egg Colour:

White with red-brown flecks.

Number of Eggs:

3 - 9

Incubation Days:

12 - 20

Egg Incubator:


Nest Material:

Round nest made of grass, moss, lichens or leaves.

Nest Location:

Tucked into a hole in a wall, tree trunk, crack in a rock, hole on a bank or corner of a building, often built in bushes, overhanging boughs or the litter which accumulates in branches washed by floods.


Some migrate


Wren: Tiny, active bird with barred, dark brown upperparts and pale eyebrows. Light brown underparts are heavily barred on flanks, belly, and undertail. Tail is very short. Sexes are similar. Juvenile resembles adults, but eyebrow isn't as distinct.

Range and Habitat

Wren: Widespread resident of the UK and Ireland. More common in western and southern Britain and Ireland. Found in many habitats, from mixed and deciduous forests to moors, gardens, and farmland. In the winter may move into reedbeds.

Breeding and Nesting

Wren: Three to nine white eggs with red-brown flecks are laid in a bulky nest made of twigs and moss, with an entrance on the side, lined with softer material, and often concealed among upturned roots of a fallen tree. Female incubates eggs for 12 to 20 days; chicks fledge 15 to 20 days later.

Foraging and Feeding

Wren: Feeds on insects such as spiders, flies, beetles, ants and caterpillars. Forages on the ground and along banks of streams.

Readily Eats



Wren: Song is a high-pitched, varied, and rapid series of musical trills and chatters. The call note is an explosive "kit" or "kit-kit."

Similar Species

Wren: The Treecreeper has much more variegated coloration and a much longer, curved bill.


Belly, undertail coverts, chest, flanks, and foreneck.

Back, rump, hindneck, wings, and crown.
The ventral part of the bird, or the area between the flanks on each side and the crissum and breast. Flight muscles are located between the belly and the breast.
Also called the supercilicum or superciliary it is the arch of feathers over each eye.
4 and 6 letter alpha codesX

The four letter common name alpha code is is derived from the first two letters of the common first name and the first two letters of common last name. The six letter species name alpha code is derived from the first three letters of the scientific name (genus) and the first three letters of the scientific name (species). See (1) below for the rules used to create the codes..

Four-letter (for English common names) and six-letter (for scientific names) species alpha codes were developed by Pyle and DeSante (2003, North American Bird-Bander 28:64-79) to reflect A.O.U. taxonomy and nomenclature (A.O.U. 1998) as modified by Supplements 42 (Auk 117:847-858, 2000) and 43 (Auk 119:897-906, 2002). The list has been updated by Pyle and DeSante to reflect changes reported by the A.O.U from 2003 through 2006.


The Integrated Taxonomic Information System (ITIS) was established in the mid-1990 s as a cooperative project among several federal agencies to improve and expand upon taxonomic data (known as the NODC Taxonomic Code) maintained by the National Oceanographic Data Center (NODC), National Oceanic and Atmospheric Administration (NOAA).

To find the ITIS page for a bird species go to the ITIS web site advanced search and report page at You can enter the TSN or the common name of the bird. It will return the ITIS page for that bird. Another way to obtain the ITIS page is to use the Google search engine. Enter the string ITIS followed by the taxonomic ID, for example "ITIS 178041" will return the page for the Allen's Hummingbird.

Parts of a Standing birdX
Head Feathers and MarkingsX
Parts of a Flying birdX