38 AUKS, MURRES, PUFFINS, ETC. 



very swift, with rapid wing beats and with 

 a slight swaying motion. 



At all times it is very tame, allowing a 

 near approach, and on its breeding grounds 

 is even more fearless. Although peaceable, 

 friendly birds, they resist being handled, and 

 will bite fiercely if removed from their bur- 

 rows, at the same time uttering a croaking 

 sound. The Puffins are the only birds of 



Fig. 27. 



Puffin in summer dress. 1-8. 



this group which stand upright on their toes, 

 without touching the tarsi to the ground, fig. 



27. 



