Additional carcasses were provided throughout the day depending on
consumption to enable all birds to feed until satiated. Carcasses that remained untouched after 1
day quickly became dry and unpalatable so remaining skin was removed to expose fresh tissues.
Fresh carcasses were provided at least every second day to ensure that there was a constant
supply of freshly exposed meat at all times. Carcasses were weighed prior to being placed in the
feeding area and the mass of all bones, hide and tissues removed at the end of each day were
subtracted to approximate the mass of tissue consumed. Long bones were crushed and scattered
around the provisioning area.