Platform Transmitting Terminal (PTT) tracking of Macaroni Penguins, Gentoo Penguins and King Penguins from South Georgia, from 2004 onward

Platform Transmitting Terminal (PTT) tags have been used to track Macaroni Penguins (Eudyptes chrysolophus), Gentoo Penguins (Pygoscelis papua) and King Penguins (Aptenodytes patagonicus) from South Georgia since 2004. PTT tags use the ARGOS satellite system to collect geospatial data. These tags are deployed on a project-by-project basis and so data are not available for every year. Included in the dataset is data from females recorded during long, post-laying foraging periods as well as from fledged birds.