Feeds on fish, krill and squid. Labbe de McCormick, Págalo Polar, Moleiro-antárctico, Antarktikskua, délsarki halfarkas, Zuidpooljager, Stercorario del Polo Sud, Sydpolslabb, Sørjo, pomorník juhopolárny, chaluha antarktická, Sydpolarkjove, etelämantereenkihu, Suidpo South Polar Skua (Stercorarius maccormicki) is a species of bird in the Stercorariidae family.

ing range of the South Polar Skua, and, except for some possible records for the Brown Skua, is unique-ly confined to this species within the Stercorariidae. It breeds south of 60° in Antarctica, including the Ross Sea region, which as the Ross Dependency is territory claimed by New Zealand. We concluded that brood reduction through siblicide is facultative, its intensity in each population each season determined by local foraging conditions. It has been much discussed where the

, Pack- zce only part of the year and probable hmH of norma/ winter range of South Polar Skuo ß t•ecord$ of South Polar Skua recoveries . The South Polar Skua looks like a bulky, broad-winged gull with a short, wedge-shaped tail. The upperparts are darker, with narrow, whitish streaks. Adults have both dark and light morphs. Foreign names . The light morph is pale gray on the head, neck, and underparts. South Polar Skua Dark: This small, gull-like skua occurs in two color phases. SOUTH POLAR SKUA'. The South Polar skua is, alongside the southern giant petrel, a top avian predator in the Antarctic. Patuxent Range, where we were placed, and in midseason re-supplied, by R41) aircraft. The dark morph is uniformly dark grayish-brown above with a pale yellowish nape. southernmost of these forms, the South Polar Skua maccormicki breeds sympatrically with the Brown Skua !Onnbergi on the Antarctic Peninsula and the South Shetland Islands and should, therefore, be regarded as a full spe­ cies. The breeding range of the different forms is outlined in Fig. Strong direct flight with shallow wing beats. Subspecific information monotypic species. RANGE AND RECORDS ß •_• ,•. The south polar skua (Stercorarius maccormicki) is a large seabird in the skua family, Stercorariidae.

Dark bill, thick and heavy; short, broad tail. Light phase adult has pale gray-brown head and underparts. north of latitude 65 ø S. in Pahnerland. Dark phase adult has a dark brown body with a large white patch at base of primaries visible in flight. An older name for the bird is MacCormick's skua, after explorer and naval surgeon Robert McCormick, who first collected the type specimen.This species and the other large Southern Hemisphere skuas, such as the great skua, are sometimes placed in a separate genus Catharacta. 1. A visit by a single south-polar skua was, however, observed the following summer when a snow-mobile traverse party, working mainly in the Neptune Range to the north, crossed the Academy Glacier to revisit the Patuxent Range.