The Pincoya storm petrel (''Oceanites pincoyae'') is a sea bird of the

storm petrel Storm-petrel may refer to one of two bird families, both in the order Procellariiformes, once treated as the same family. The two families are: * Northern storm petrels (''Hydrobatidae'') are found in the Northern Hemisphere, although some speci ...

family. The specific name commemorates the Pincoya, a female water spirit of the Chilote mythology. After being first brought to the attention of the world from photographs taken by Seamus Enright and Michael O'Keeffe in 2009 this species was finally formally discovered and examined in 2011 and scientifically described in 2013. It is known "only from waters near

Chiloé Island Chiloé Island ( es, Isla de Chiloé, , ) also known as Greater Island of Chiloé (''Isla Grande de Chiloé''), is the largest island of the Chiloé Archipelago off the west coast of Chile, in the Pacific Ocean. The island is located in southern ...

(Reloncavi Sound and the Chacao Channel),

Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...

".Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2015. ''The eBird/Clements checklist of birds of the world: v2015''. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/

Description

The

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of sever ...

, a female, which was captured, examined, and released afterwards on 19 February 2011 has the following measurements: head and bill length 32.9 mm, exposed culmen length 11.5 mm, bill length from gape 12 mm, flattened wing length from chord 134 mm, tarsus length 31 mm, mid-toe length (with claws) 26.5 mm, tail length 57 mm, wing span 330 mm and a mass of 24 g. Two

paratype In zoology and botany, a paratype is a specimen of an organism that helps define what the scientific name of a species and other taxon actually represents, but it is not the holotype (and in botany is also neither an isotype nor a syntype). O ...

s, a juvenile female and a male which were originally identified as

Wilson's storm petrel Wilson's storm petrel (''Oceanites oceanicus''), also known as Wilson's petrel, is a small seabird of the austral storm petrel family Oceanitidae. It is one of the most abundant bird species in the world and has a circumpolar distribution mainly ...

s (''Oceanites oceanicus'') and collected by Argentinian ornithologist Andor Kovács at El Bolsón, Argentina in 1972 and 1983 have the following measurements: the wing length of the juvenile female is 138 mm, the tail length 61 mm, the tarsus length 31.5 mm, the culmen length is 9.5 mm, the mid-toe length is 26 mm, the wing length of the male is 137 mm, the tail length is 53 mm, the tarsus length 30.5 mm, the exposed culmen length is 10 mm and the mid-toe length is 27 mm. The head, mantle, scapulars, back and upper rump are blackish-brown. The nape, mantle and scapulars, back and upper rump are washed silvery-gray. Some scapulars and the longest tertials have narrow but distinct white edges.

References

Oceanites Birds described in 2013 Birds of Chile Endemic birds of Chile {{procellariiformes-stub