Biometría del "churrete austral", Cinclodes antarcticus (Garnot) en isla Gonzalo, archipiélago Diego Ramírez, sur de Chile

during january 2011 we recorded morphometric and behavioral data of cinclodes antarcticus in gonzalo island, diego ramirez, southern chile. the bill length was significantly higher in males compared to females. c. antarcticus is a commensal bird of seabird and marine mammal colonies of the patagonia.