River Edge King Penguins - Moulting
After breeding season, moulting occurs, where King Penguins lose their old feathers and have them replaced by new ones. Like the juveniles, adults cannot fish for food until they have a new fully intact and functioning set of feathers, so this moult period is one of starvation while living on food reserves.
In this picture the king penguins are moulting along the river edge to regulate the temperature of their bodies. By leaving their feet in the glacier stream it stabilizes their core body temperature of 38°C (100.4°F).
St Andrew's Bay, South Georgia