Heinroth Shearwater

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Heinroth Shearwater
Systematics
Class : Birds (aves)
Order : Tubular noses (Procellariiformes)
Family : Petrels (Procellariidae)
Genre : Shearwater ( Puffinus )
Type : Heinroth Shearwater
Scientific name
Puffinus harothi
Reichenow , 1919

The Heinroth Shearwater ( Puffinus heinrothi ) is a seabird from the genus puffinus within the family of Petrel (Procellariidae). The art epithet honors the German ornithologist Oskar Heinroth , who collected the holotype at the beginning of the 20th century .

features

The Heinroth Shearwater reaches a body length of 27 cm. The top is brown-black. The cheeks and throat are gray-brown and the underside is dark brown. The plumage of the middle of the abdomen is white with dark brown borders. The small under wing-coverts are dark brown; the medium and large ones are white and contrast with the dark wings so that they form a broad, light band on the lower wing. The long, thin beak is gray-black. The feet are flesh-colored on the underside, black on the top and sides. The iris is brown or blue.

distribution

The distribution area of ​​the Heinroth Shearwater extends over the Bismarck Archipelago (where the species occurs particularly in New Britain and Madang and on the north coast of New Guinea ), the waters around Bougainville and on Kolombangara in the Solomon Islands .

Habitat and way of life

The Heinroth shearwater goes in search of food on the high seas, probably in the open water area far from the bank. The breeding areas are in high mountains in the countryside. No more is known about his way of life.

status

For a long time only seven specimens of the Heinroth shearwater were known: the holotype captured by Oskar Heinroth in Blanche Bay in New Britain in 1901, as well as six other individuals observed near Watom Island in 1934 . In 1979 he was rediscovered on Bougainville by the New Zealand ornithologist Don Hadden. Although the Heinroth shearwater breeds in high, inaccessible mountains, rats, cats and dogs are endangered on all islands where the species has been identified. Rats were discovered at an altitude of 900 m on Kolombangara Island and are a potential threat to the chicks. BirdLife International classifies the Heinroth shearwater in the category of "endangered" ( vulnerable ) and estimates the global inventory of 250 to 1000 copies.

literature

  • Warren B. King on the behalf of the International council for bird preservation (ICBP) and the Survival service commission of IUCN (1978-1979): Red Data Book 2: Aves (2nd edition). IUCN, Morges, Switzerland, 1981. ISBN 0-87474-583-7
  • Josep del Hoyo , Andrew Elliot, Jordi Sargatal : Handbook of the birds of the world. Volume 1: Ostrich to Ducks. Lynx Edicions, Barcelona 1992. ISBN 84-87334-10-5

Web links