Common Tern: Medium-sized tern with medium gray upperparts, pale gray underparts,, and 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. Sexes are similar. Winter adult and juvenile have white forehead, black hindcrown, black bill with red base, and dark shoulder bar.
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.
"kee-urr" removed period
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.
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Family
Tern (Laridae)_blue
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Species
Sterna hirundo
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Length13 - 16
Inches
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Wingspan30.5
Inches
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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.
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BreedingMonogamous, Colonial
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Population
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MigrationMigratory
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Weight4.2
Ounces
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