182 STUDIES IN BIRD-MIGRATION 



and 26th June ; and at the latter from 25th September 

 to 3rd October. No doubt many escape notice. 



FuLMARUS GLAciALis, Fulmar Petrel. — Until the 

 first or second years of the present century this bird was 

 only occasionally observed ; now it is an abundant 

 native species. In 1902 it was first detected as being 

 present all through the summer season, but no eggs 

 were found. Since then it has increased immensely, 

 and breeds in suitable places all round the island. 



It occurs all the year round, but is only occasionally 

 seen in October, November, and December. During 

 the mild season of 19 10 to 191 1 it was common inshore 

 all winter. It leaves its nesting-haunts early in 

 September ; appears again in mid- December or early in 

 January ; and takes up its breeding-haunts on the cliffs 

 in earnest during the first week of March. 



Addenda 



Emberiza leucocephala, Pine- Bunting. — A male of 

 this native of Siberia was obtained on 30th October 

 191 1. It is not known to have previously visited the 

 British Isles. 



AcROCEPHALUS PALUSTRis, Mursh- Warbler. — See p. 

 (and footnote) 134. 



Anas strepera, Gadwall — A young male, observed 

 on nth October 191 1, is new to the avifauna of the 

 island. 



