Locomotion and foraging strategy in foot-propelled and wing-propelled shallow-diving seabirds

Miniaturised depth and acceleration recorders on free ranging, foot-propelled divers (great cormorants - Phalacrocorax carbo) and flipper-propelled divers (little penguins - Eudyptula minor) foraging in shallow waters from August 2001 to August 2002 in West Greenland and south of Perth, Western Australia. Diving strategies of the birds were monitored to assess how they manage to counteract buoyancy using two alternative locomotory modes.