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Bird name:

Common Tern

Sterna hirundoOrder: CHARADRIIFORMES Family: Skuas, Gulls, Terns, Skimmers (Laridae)
Codes: Common Name: COTE Scientific Name: STEHIR ITIS Taxonomic No.: 176888
Least Concern
 
Common Tern_2
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Overview

Common Tern: Medium tern, medium gray upperparts, pale gray underparts, glossy black cap and nape. Wings are dark-tipped and have dark leading edge on forewing. Red bill is black-tipped. Legs are red and tail is deeply forked and elongated. Direct flight, hovers above water before diving for prey.

Range and Habitat

Common Tern: Breeds in North America along the Atlantic coast from the northern Maritime Provinces of Canada to South Carolina, and occasionally in the Gulf of Mexico or on large inland lakes. Spends winters from southernmost breeding areas on the Atlantic coast to northern Ecuador and Brazil. Preferred habitats include sand and shell beaches, grassy uplands, and rocky inland shores.

Topo Map: Gull-like Body


Listen to Call

Voice Text

"kee-urr" removed period

Interesting Facts

 The Common Tern is sometimes called the sea swallow.

 Birds living along the coast drink salt water. They do not seek fresh water even when it is available nearby. Like many seabirds, they have nasal glands that excrete the excess salt.

 Populations were severely depleted in late 19th century for millinery trade, but have recovered with protection.

 A group of common terns are collectively known as a "committee" of terns.


Bird Term Glossary



Author

Gary Owen Dick

Artist

Yury Lisyak

Splitbar
Range Map for Common Tern

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Family Tern (Laridae)_blue
Species Sterna hirundo
Length13 - 16 Inches
Wingspan30.5 Inches

Common Tern

Common Tern: Medium tern, medium gray upperparts, pale gray underparts, glossy black cap and nape. Wings are dark-tipped and have dark leading edge on forewing. Red bill is black-tipped. Legs are red and tail is deeply forked and elongated. Direct flight, hovers above water before diving for prey.

● Song: "kee-urr" removed period

● Foraging & Feeding: Common Tern: Feeds primarily on small fish up to four inches in length; also takes shrimp and aquatic insects; forages by striking the water in shallow plunge dives or skimming the surface.

● Breeding & nesting: Common Tern: One to three buff to brown eggs spotted with dark brown and black are laid in a simple scrape built above the high tide line in sand, gravel, shells, or seaweed, and lined with vegetation. Incubation ranges from 21 to 27 days and is carried out by both parents.

● Similar species: Common Tern: Roseate and Forster’s terns lack dark leading edge on forewings. Arctic Tern is smaller, shorter-legged, longer-winged, and has solid red (adult) or black (juvenile) bill.

Flight Pattern

Light buoyant flight with rapid wing beats.
Common Tern Body Illustration_2
● Range & Habitat: Common Tern: Breeds in North America along the Atlantic coast from the northern Maritime Provinces of Canada to South Carolina, and occasionally in the Gulf of Mexico or on large inland lakes. Spends winters from southernmost breeding areas on the Atlantic coast to northern Ecuador and Brazil. Preferred habitats include sand and shell beaches, grassy uplands, and rocky inland shores.
BreedingMonogamous, Colonial
Population
MigrationMigratory
Weight4.2 Ounces
Gull-like BodyX
UnderpartsX
Belly, undertail coverts, chest, flanks, and foreneck.
UpperpartsX
Back, rump, hindneck, wings, and crown.
CapX
The area on top of the head of the bird.
NapeX
Also called the hindneck or collar, it is the back of the neck where the head joins the body.
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.

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ITIS CodesX

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 http://www.itis.gov/advanced_search.html. 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.

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