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Bird name:

Willow Warbler

Phylloscopus trochilus




Old World Warblers (Sylviidae)





Euring 5

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Field Mark Mask (HD) - 1200 x 1500 scaled to 576 x 725

Willow Warbler_CEPortrait_1200Willow Warbler

Field Mark Mask 576 - no scaling

Willow Warbler_CEPortrait_576Willow Warbler_mask_576

CEIcon 64 x 64

Willow Warbler_CEIcon

Thumbnail Body (Android only) - 80 x 100

Willow Warbler Thumbnail

Thumbnail Body Large (Android only) - 160 x 200

Willow Warbler Thumbnail Large

Thumbnail Body Largest XLT 250 x 312 Gallery View

Willow Warbler Thumbnail Body Largest.png

Thumbnail Head Largest XLH 200 x 250 Gallery View (transparent bkgnd)

Willow Warbler Thumbnail Head Largest

Body Illustration

Willow Warbler Body Illustration

Flight Illustration

Willow Warbler Flight Illustration

Head Illustration

Willow Warbler Head Illustration


Willow Warbler_CEPortrait_576





Range Map_486

Range Map HD

Range Map for Willow Warbler

Portrait 1000 x 800

Willow Warbler Portrait

CEPortrait_1200 x 1500 - Displayed 1/2 size

Willow Warbler_CEPortrait_1200Willow Warbler

CEVariation1_1200 x 1500 - Displayed 1/2 size

CEVariation2_1200 x 1500 - Displayed 1/2 size

CEVariation3_1200 x 1500 - Displayed 1/2 size

CEVariation4_1200 x 1500 - Displayed 1/2 size

Field Mark Mask - Scaled down about 1/2 size

Willow Warbler

Field Mask Mask 576

Willow Warbler_mask_576

Topography - just 1st of 3 images

Perching-like Head Topography


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