Amazon tern
| Amazon tern | ||||||||||
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Amazon tern |
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| Systematics | ||||||||||
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| Sternula superciliaris | ||||||||||
| ( Vieillot , 1819) |
The Amazon tern ( Sternula superciliaris , Syn. Sterna superciliaris ) is a species of bird from the family of the tern (Sternidae).
It occurs on rivers and lakes in South America east of the Andes : in Argentina , Bolivia , Brazil , Ecuador , French Guiana , Guyana , Colombia , Panama , Paraguay , Peru , Suriname , Trinidad and Tobago , Uruguay and Venezuela .
Their distribution area includes rivers, swamps and freshwater lakes up to 500 m.
description
The Amazon tern is about 23 cm tall and weighs between 40 and 57 g. The legs are always yellow, the broad and strong beak is also yellow, the beak of the young bird has a black tip. The top is silver gray, the underside light gray to white. There is little contrast on the wings of the hand . The crown, neck and reins are black. In the plain dress , the forehead is white and the crown is light gray. It is similar to the American little tern , but is larger, has a stronger bill and longer legs. It also resembles the Peruvian tern .
voice
The male's call is described as a short nasal “kuk” and a somewhat longer, rough “rreh”.
Way of life
The diet consists of small fish , shrimps and insects , which are often caught from the air by diving into the water.
The breeding season is between November in Suriname, December in Uruguay and July in Peru, depending on dry sandbanks. It is a colony breeder and breeds together with black-coat scissors-beaks and big-billed terns .
Hazardous situation
The Amazon tern is not considered endangered ( least concern ).
literature
- Louis Pierre Vieillot: Nouveau dictionnaire d'histoire naturelle, appliquée aux arts, à l'agriculture, à l'économie rurale et domestique, à la médecine, etc. Par une société de naturalistes et d'agriculteurs . tape 32 . Deterville, Paris 1819 ( biodiversitylibrary.org ).
Web links
- Videos, photos and sound recordings of sterna superciliaris in the Internet Bird Collection
- Oiseaux.net
Individual evidence
- ↑ Louis Pierre Vieillot, p. 176.
- ↑ Avibase
- ↑ a b c d Handbook of the Birds of the World
- ↑ a b c Cornell Lab of Ornithology
- ↑ PeruAves
- ^ M. McMullan: Field Guide to the Birds of Colombia Rey Naranjo Editores, 2018, ISBN 978-958-8969-77-0
- ^ IUCN Redlist