Foto de stock - Adult southern fulmar Fulmarus glacialoides on the wing in the Drake passage between the tip of South America and Antarctica Southern Ocean The Southern Fulmar is a seabird of the Southern Hemisphere This bird is in the fulmar genus Fulmarus in the family Procellariidae, the true petrels It is also known as the Antarctic Fulmar or Silver-grey Fulmar It is a fairly large, bulky petrel, 45-50 cm long with a wingspan of 110-120 cm The male has an average weight of 795 grams while the smaller female weighs around 740 grams These weights increase to 1049 and 932 grams at the start of a shift incubating the eggs The male has a wing length of 340 mm, bill length of 44 6 mm, tarsus length of 52 1 mm and tail length of 124 mm The female has a wing length of 339 mm, bill length of 43 mm, tarsus length of 51 5 mm and tail length of 121 mm The species was first described in 1840 by the Scottish naturalist Andrew Smith based on a specimen collected at the Cape of Good Hope It is a common species with a population of at least 4 million individuals About a million pairs breed on the South Sandwich Islands alone The species is not thought to be at risk of extinction and is classed as Least Concern by Birdlife International