Occurrence of Stercorarius pomarinus (Temminck, 1815, Charadriiformes: Stercorariidae) in the Cananéia estuary, southern coast of São Paulo State

Abstract

Many Neartic seabirds migrate to South America for the non-breeding season, using several key stopover and wintering sites along the Atlantic coast. The Stercorarius pomarinus is a widely distributed seabird found in every Ocean. It is a migratory bird from northern North America that flies southwards. However, there is little information about the occurrence of Stercorarius pomarinus along the São Paulo State coast. Former publications concerning the birds of Iguape-Cananéia-Ilha Comprida estuary have made no mention of the presence of this bird in the region. Thus it is important that forthcoming appearances be recorded. Throughout the bird-sample selection stage, undertaken since 1998 in the Cananéia estuary (25° 02' 44.71" S and 47° 55' 14.58" W) -272 km from the city of São Paulo -, the bird was seen for the first time, resting in the Cananéia estuary, in January (2012). This note reports the occurrence of Stercorarius pomarinus in the Cananéia estuary, on the southern coast of São Paulo State, Brazil.

Flutuações mensais na abundância dos Charadriidae e Scolopacidae da praia da Ilha Comprida, São Paulo, Brasil

“…Esse registro coincide com os dados obtidos por Vooren e Chiaradia (1990) para a Praia do Cassino (RS), por Costa & Sander (2008) A proteção das aves migratórias das famílias Charadriidae e Scolopacidae está diretamente ligada à preservação dos seus sítios de reprodução, alimentação e repouso (Alves 2007, Manuel et al 2011b, Barbieri & Bete 2013. A perda ou alteração dos sítios de invernada e de repouso dessas aves pode resultar na redução e até mesmo a extinção local de algumas espécies ou a diminuição da população (Cordeiro et al 1996, Barbieri 2007, Alves 2007, Barbieri & Hvenegaard 2008, Hvenegaard & Barbieri 2010.…”

Migrant birds present on Ilha Comprida, southern coast of the State of São Paulo

“…Stercorarius pomarinus is a sea bird that migrates to practically all oceans after reproduction and can be observed with some frequency in the South Atlantic (Olsen and Larsson, 1997). However, there is little information about the occurrence of this bird along the coast of the State of São Paulo (Olmos, 2000); a single publication mentions its in the Iguape, Cananéia, Ilha Comprida Estuary (Barbieri and Bete, 2013). S. parasiticus and Stercorarius pomarinus are trans-equatorial migrants who winter on the South American coast (Sick, 1997;Olmos 2000).…”