Olrog's Gull

It is threatened by habitat loss.

The Olrog's Gull is classified as Vulnerable (VU), considered to be facing a high risk of extinction in the wild.

The Olrog's Gull (Larus atlanticus) is a species of gull found along the Atlantic coast of southern Brazil, Uruguay and northern Argentina. It was formerly considered a subspecies of the very similar L. belcheri. It is a medium-sized gull with a blackish mantle, white head and underparts, a black band in the otherwise white tail, and a yellow bill with a red and black tip. Non-breeding adults have a blackish head and a white eye-ring. It is threatened by habitat loss. More

Olrog's Gull parent with chicksSeveral research recommendations were presented by Yorio et al. (2005). More

For the purposes of our bird news services, Olrog's Gull is classed as Ungraded: species that are unlikely to appear as wild birds in Britain or Ireland hide section Most recent photos of Olrog's Gull (2) San Clemente de Tuyu, Buenos Aires (province), Argentina San Clemente de Tuyu, Buenos Aires (province), Argentina28/12/2009 San Clemente de Tuyu, Buenos Aires (province), Argentina 28/12/2009 Punta Rasa, Buenos Aires (province), Argentina Punta Rasa, Buenos Aires (province), Argentina21/09/2009 Punta Rasa, Buenos Aires (province), More

Olrog's Gull has a rather specialised feeding ecology, depending mainly on three crab species (Chasmagnathus granulata, Cyrtograpsus altimanus and C. angulatus) during the breeding season4,8. During the winter, it feeds also on crabs but shows a more opportunistic feeding ecology consuming molluscs, snails, small fish, insects, garbage and fish discards9,11,12. Threats The Bah More

The Olrog's Gull (Larus atlanticus) is a species of gull in the Laridae family. It is found in Argentina, Brazil, and Uruguay. Its natural habitats are shallow seas, sandy shores, and coastal saline lagoons. It is threatened by habitat loss. More

First report of Olrog's Gull depredation by sympatric Kelp Gulls. = Olrog's Gull (Larus atlanticus) (Olrog 1958) is endemic to the coastal wetlands of the Atlantic Coast in Argentina, Uruguay, and southern Brazil (Yorio et al. 2005), and is listed as a Vulnerable species (Birdlife International 2008). Factors that led to this classification include the limited geographical range of the species, small estimated population size (4,000-5,000 pairs), its specialized diet, and high susceptibility to anthropogenic changes in the environment. More