The breeding success (timing of laying, hatching, creche formation, causes of failure and posture thermoregulation) of adelie penguins (Pygoscelis adeliae) at Cape Bird, Ross Island

Data was collected on the different postures and orientation of the adult birds in relation to climatic variables of their microclimate. Parameters measured were light intensity, wind speed and direction, temperature, relative humidity and cloud cover. Chicks of banded birds were marked and weighed at intervals.

The occurrence and intensity of creching was noted with reference to climatic conditions and the presence of adults. A census was taken daily to determine what causes creche formation. Postural thermoregulation was recorded by noting the orientation of the chicks bodies under different climatic conditions.