Distribuição do maçarico-branco (Calidris alba) entre julho de 2008 e junho de 2009 na praia da Ilha Comprida, São Paulo, Brasil

Sanderling (Calidris alba) is one of most abundance neartic bird at Brazil, makes extensive migrations, breads at north hemisphere in boreal summer e migrate to Terra do Fogo in boreal winter. The Ilha Comprida beach is a important stopover during Caldris alba migration. For this reason the aim of this study is analyze a mensal and seasonal variation of this bird at Ilha Comprida beach. The 44 censuses were conducted at beach from July 2008 to June 2009. The species was considered constant from September 2008 and February 2009, the highest averages occurred in December followed by October, and in the spring. The conclusion is that Sanderling uses this area to rest and feed mainly on the south migration.