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Bird name:

Common Tern

Sterna hirundo




Terns (Sternidae)





Euring 5

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

Common Tern_CEPortrait_1200Common Tern

Field Mark Mask 576 - no scaling

Common Tern_CEPortrait_576Common Tern_mask_576

CEIcon 64 x 64

Common Tern_CEIcon

Thumbnail Body (Android only) - 80 x 100

Common Tern Thumbnail

Thumbnail Body Large (Android only) - 160 x 200

Common Tern Thumbnail Large

Thumbnail Body Largest XLT 250 x 312 Gallery View

Common Tern Thumbnail Body Largest.png

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

Common Tern Thumbnail Head Largest

Body Illustration

Common Tern Body Illustration

Flight Illustration

Common Tern Flight Illustration

Head Illustration

Common Tern Head Illustration


Common Tern_CEPortrait_576





Range Map_486

Range Map HD

Range Map for Common Tern

Portrait 1000 x 800

Common Tern Portrait

CEPortrait_1200 x 1500 - Displayed 1/2 size

Common Tern_CEPortrait_1200Common Tern

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

Common Tern

Field Mask Mask 576

Common Tern_mask_576

Topography - just 1st of 3 images

Gull-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