Manchester Memoirs, Vol. XL VIII. {No. '^3.) 



Plate I. 



Fio-. I. 

 A "Rockhopper" rookery. ( Endyptes chrysoconie.) 



Fig. 2. 



A " Gentoo " rookery. ( Pygosceles taeniata). The birds in the distance are 

 running to the sea shore. 



