page_title: Southern fulmar
section_title: Reproduction
hierarchical_section_title: Southern fulmar / Behaviour / Reproduction
caption_attribution_description: Deutsch&#x3a;&#32; Ei eines Silbersturmvogel - Sammlung von Jacques Perrin de Brichambaut Fundort: Französisch Antarktis Expedition 1956English&#x3a;&#32; Egg of Southern Fulmar - Collection of Jacques Perrin de Brichambaut Locality: French Antarctic Expedition 1956Français&#x202f;&#x3a;&#32; Œuf de Fulmar antarctique - Collection de Jacques Perrin de Brichambaut Localité: Expédition antarctique français 1956 Muséum de Toulouse &#160;&#160;Native nameMuséum de ToulouseLocationToulouse , FranceCoordinates43°&#160;35′&#160;38″&#160;N, 1°&#160;26′&#160;57″&#160;E &#160;Established1796&#58; &#32;established&#160;; 1865&#58; &#32;opened to publicWeb pagewww.museum.toulouse.frAuthority control : Q422 VIAF:&#8201;131004808 ISNI:&#8201;0000 0001 2158 3469 SUDOC:&#8201;028667107 BNF:&#8201;120455376 Museofile:&#8201;M7013 institution QS:P195,Q422
context_page_description: The southern fulmar is a seabird of the Southern Hemisphere. Along with the northern fulmar, F. glacialis, it belongs to 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 largely pale grey above and white below with a distinctive white patch on the wing. It breeds on the coast of Antarctica and on surrounding islands, moving north in winter. It nests in colonies on cliffs, laying a single egg on a ledge or crevice. Its diet includes krill, fish and squid picked from the water's surface.
context_section_description: The breeding colonies may contain hundreds of birds and are on cliffs in ice-free areas with the birds arriving in October. The courtship display consists of a pair sitting alongside each other while calling, waving their heads and nibbling and preening each other. The nest is a shallow scrape lined with stone chips. It is built in a spot sheltered from the wind on a ledge or scree slope or in a crevice. A single, white egg is laid during late November or early December. It measures 76 by 51 mm (2.99 by 2.01 in) and weighs about 103 g (3.6 oz). It is incubated for about 45 days with both parents taking turns in stints of 3–9 days. The down feathers of the young birds are initially white apart from a blue-grey wash on the mantle. The second set of down feathers is grey on the upperparts and flanks while the rest of the underparts and the forehead remain white. The young fledge after around 52 days. Poor weather can lead to high mortality rates among eggs and chicks and they are also preyed on by skuas and sheathbills. Breeding success increases as the parents mature, improving from 48% at age 6–8 to 87% at age 18–20.
caption: Egg of Fulmarus glacialoides
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