VOL. IX.] (illEAT NORTHERN DIVER. 143 



and came up some ten 3'ards from the nest, finally 

 swimming the remainder of the distance on tlie surface. 



The second time she came on she agam arranged the 

 eggs with open beak ; on the third occasion she moved 

 them with the beak both opened and closed. She altered 

 their position several times before she was satisfied, sittmg 

 on them in the mtervals between re-arranging them . She 

 also altered her own position on the nest. 



Fig. 1. NEST OF A GREAT NORTHERN DIVER BUILT ON A 

 SUBMERGED BANK. 



{Photographed by Eric B. Dunlop.) 



Another pair of Great Northern Divers settled on this 

 lake, one shortly after flying off, while the other joined 

 the pair near the nest. All three dived about and preened 

 their plumage together. This toleration of a strange 

 bird in the vicinity of the nest was interesting, but it 

 did not last long, for one of the pair suddenly jumped 

 straight up in the water, the body vertical, until it was 

 all but clear of the surface, and with wings extended 

 struck inward with them towards the interloper. The 

 latter then took wing and departed. 



A bird that flew directly over me carried the legs and 

 feet extended behind the tail and pointed together in a 



