Aberrantly plumaged White-chinned Petrels Procellaria aequinoctialis in the Brazilian waters, south-west Atlantic Ocean. (9th July 2015)

• Record Type: Journal Article
• Authors: Frainer, Guilherme; Daudt, Nicholas W.; Carlos, Caio J.
• Is Part Of: Marine biodiversity records. Volume 8(2015)
• Publication Date: 2015-07-09
• Subjects: aberrant colouration, -- brown mutant, -- leucism, -- progressively greying, -- seabirds; Marine biodiversity -- Periodicals; Marine biology -- Periodicals; 578.77
• DOI: 10.1017/S1755267215000871
• Languages: English
• ISSNs: 1755-2672

Abstract

Abstract : We report on three aberrantly plumaged White-chinned Petrels Procellaria aequinoctialis from the Brazilian Economic Exclusive Zone in the south-west Atlantic Ocean – the first reports based upon tangible evidence for the region. Two of them showed a low degree of colour aberration (some white around the eyes and on the upper-wing coverts), whereas the third exhibited the highest degree of plumage aberration so far reported for the species: a plumage mostly white with brown freckles on the upper- and under-parts, head and nape. We also commented on problems related to at-sea identification of aberrantly plumaged seabirds.