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Bird name:

Wood Warbler

Phylloscopus sibilatrix




Old World Warblers (Sylviidae)





Euring 5

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Breeding Location:


Breeding Type:

Monogamous, Polygamous

Egg Colour:

Smooth, glossy, white and evenly coated with fine brown specks.

Number of Eggs:

5 - 7

Incubation Days:

12 - 14

Egg Incubator:


Nest Material:

Sphere nest, with a side entrance, built of bark, grass and leaves; lined with fine grasses and hair.

Nest Location:

On or near the ground in low shrub.




Wood Warbler: Small bird with grey-olive upperparts, white belly and vent, and yellow breast. Throat and face are yellow with a yellow eyebrow and grey-olive line through the eye. Long wings and tail are dark grey with yellow-olive edging. Brown-pink legs and feet, and orange-yellow and grey bill. Sexes and ages similar.

Range and Habitat

Wood Warbler: Summer breeder in the UK & Ireland. Birds can be seen from spring through summer when they migrate to tropical Africa. Widely found in Britain in upland forest areas in the west. Less common in Ireland where they are seen mostly the north and east. Habitat is comprised of deciduous forest.

Breeding and Nesting

Wood Warbler: Polygamous. Prefers broadleaved woodlands with thick canopy and open understory. Female builds nest, which is a sphere on the ground. Female incubates five or six eggs for 12 to 14 days. Both parents care for young, which fledge in 11 to 13 days. One brood per season.

Foraging and Feeding

Wood Warbler: Feeds primarily on insects, spiders, and other invertebrates. Also eats some fruit.


Wood Warbler: Begins slowly and builds into a trilling "zip - zip - zip - zip - zip-zip-zip-zipzipzipzipzvurrur;" may also be followed by "pew-pew-pew-pew-pew." Call is a soft "pew" or "whit-whit-whit."

Similar Species

Wood Warbler: Chiffchaff is smaller, has brown bill, darker legs, and has buff, rather than white, underparts. Willow Warbler is smaller, has a thinner eyebrow, and yellow-white underparts. Call is the best way to tell them apart.

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.
The upper front part of a bird.
Also called the supercilicum or superciliary it is the arch of feathers over each eye.
The front part of the head consisting of the bill, eyes, cheeks and chin.
Birds do not have two separate cavities for excrement and reproduction like humans do. In birds, there is one single entrance/exit that suits both functions called the vent, cloaca or anus.
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