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Tern, Black
 
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Bird Info
Bird Info
Photos
Observations
Conservation status
Scientific Name:
Chlidonias niger
Location(s):
Afghanistan, Africa, Alabama, Alaska, Albania, Alberta, Angola, Anguilla, Antigua and Barbuda, Argentina, Arizona, Arkansas, Asia, Atlantic Islands, Australasia, Australia, Austria, Bahamas, Barbados, Belarus, Belgium, Belize, Bermuda, Bosnia and Herzegovina, Botswana, Brazil, British Columbia, British Isles, British Virgin Islands, Bulgaria, Burundi, California, Canada, Caribbean, Cayman Islands Read more
Related Reading
IUCN
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or ...
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Wikipedia
Adult are 25 cm (9.75 in) long, with a wing span 61 cm (24 in), and weigh 62 g (2.2 oz). They have short dark legs and a short, weak-looking black bill, measuring 27–28 mm, nearly as long as the head. The bill is long, slender, and looks slightly decurved. They have a dark grey back, with a white forewing, black head, neck (occasionally suffused with gray in the adult) and belly, black or blackish-brown cap (which unites in color with the ear coverts, forming an almost complete hood), and a light brownish-grey, 'square' tail. The face is white. There is a big dark triangular patch in front of the eye, and a broadish white collar in juveniles. There are grayish-brown smudges on the ides of the white breast, a downwards extension of the plumage of the upperparts. These marks vary in size and are not conspicuous. In non-breeding plumage, most of the black, apart from the cap, is replaced by grey. The plumage of the upperparts is drab, with pale feather-edgings. The rump is brownish-gray. ...
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