166 CATALOGUE OF BIRDS. 



passing all through May, and occasionally as late as 

 the second week in June. 



The specimens in the case were obtained on 

 Heigham Sounds, in the east of Norfolk, in May, 

 1871. 



GREAT CRESTED GREBE. (WINTER) . 



Case 210. 



It is seldom during the winter months that I have 

 observed these birds frequenting their summer haunts 

 Asa rule they are found on tidal waters ; one or two, 

 however, occasionally return to their old quarters, 

 and having settled on the ice experience considerable 

 difficulty in getting on wing again. 



The specimens in the case were killed at sea 

 between Shoreham and Lancing ; one in December, 

 1879, the other in February, 1881. 



CHOUGH. 

 Case 211. 



The Chough appears in certain districts to be 

 gradually disappearing ; year by year the colonies 

 grow smaller, and the total extinction of the species 

 will probably be shortly accomplished. This falling - 

 offin numbers does not refer to the whole of the British 

 Islands, as in some localities it still holds its own. 



The specimens were obtained in Cornwall in the 

 autumn of 1880. 



