PLATE XI 



Fig. I. Pygoscelis adeliae coming ashore at the rookery on Michelsen 

 Island, Ellefsen Harbour. The birds have just left the sea and are com- 

 paratively clean. The apparently aimless behaviour of the birds is cus- 

 tomary when they are away from their nests. 



Fig.2. Priocellaantarctica&nd chickin a nest in Sandefjord Bay, io.i.33. 



