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Bird name:

Roseate Tern

Sterna DougalliiOrder: CHARADRIIFORMES Family: Skuas, Gulls, Terns, Skimmers (Laridae)
Codes: Common Name: ROST Scientific Name: STEDOU ITIS Taxonomic No.: 176891
Least Concern
 
Roseate Tern:  The breeding adult Roseate Tern is pale gray above with a black cap and nape and a slight variable pinkish cast on the white underparts that is only visible in good light. Bill mostly black with some red at base; legs and feet are red-orange.
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Roseate Tern Variations

Roseate Tern
Juvenile
Roseate Tern
Roseate Tern
1st Summer
Roseate Tern
Roseate Tern
Breeding Male
Roseate Tern

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Overview

Roseate Tern: White below with slight, variable pinkish cast visible in good light; pale gray above with black cap, nape and deeply forked tail that projects well beyond wingtips at rest. Bill mostly black with some red at base; legs and feet are red-orange. Graceful, direct flight.

Range and Habitat

Roseate Tern: Offshore Florida Keys, and along New England coast from Long Island to Nova Scotia.

Topo Map: Gull-like Body


Listen to Call

Voice Text

"chi-wee", "keer", "zra-ap", "zhrrraaaaach"

Interesting Facts

 The Roseate Tern is less defensive of its nest and young than other white terns, often relying on Arctic and Common Terns in the surrounding colony to defend them.

 It sometimes steals fish from other seabirds. This increases their food collecting ability during bad weather when fish swim deeper, out of reach of the terns, but still within reach of the deeper-diving Puffins.

 Breeding colonies in the Caribbean are vulnerable to egg collectors, who seek the eggs of this species because of supposed aphrodisiac properties.

 A group of terns are collectively known as a "ternery" or a "U" of terns.


Bird Term Glossary



Author

John Schwarz

Artist

David Wenzel

Splitbar
Range Map for Roseate Tern

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Family Tern (Laridae)_blue
Species Sterna Dougallii
Length12.5 - 15.5 Inches
Wingspan29 Inches

Roseate Tern

Roseate Tern: White below with slight, variable pinkish cast visible in good light; pale gray above with black cap, nape and deeply forked tail that projects well beyond wingtips at rest. Bill mostly black with some red at base; legs and feet are red-orange. Graceful, direct flight.

● Song: "chi-wee", "keer", "zra-ap", "zhrrraaaaach"

● Foraging & Feeding: Roseate Tern: Eats mainly small fish. Plunge dives for prey, often hovering before making its next catch. Often forms noisy active flocks when predatory fish drive schools of small fish to the surface.

● Breeding & nesting: Roseate Tern: Highly marine and coastal; comes ashore only to nest. Nest built by both sexes on ground, under cover, lined with debris, dry grass, and seaweed. Lays one to three white to buff eggs speckled with red brown and gray. Incubation ranges from 21 to 26 days and is carried out by both sexes; first flight at 27 to 30 days, but young may leave nest as early as a few days after hatching. One brood per year.

● Similar species: Roseate Tern: Common Tern is slightly smaller with black-tipped red bill, dark wing tips; shorter, less deeply-forked tail with dark outer border; different voice. Arctic Tern is grayer, gray mantle, wings, and underparts; white cheeks, dusky gray wing tips; deeply-forked tail has gray on outer margins; different voice.

Flight Pattern

Fairly stiff, quick, almost hurried wingbeats.
Roseate Tern: Breeding Male
● Range & Habitat: Roseate Tern: Offshore Florida Keys, and along New England coast from Long Island to Nova Scotia.
BreedingMonogamous, Colonial
PopulationUncommon to rare
MigrationMigratory
Weight3.8 Ounces
Gull-like BodyX
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