Birds of the Pyrenees. 391 



white primaries of the adults being very apparent as they 

 soared over one's head. Some of the mature birds had 

 nearly full black heads by the 7th of March, when I left for 

 that year. During the winter of 1882-83 I saw none ; but 

 I believe this species breeds on some of the lakes, of which 

 there is a chain lying parallel to the sea, between Bayonne 

 and the mouth of the Gironde, and it is known to be a visitor 

 to Bordeaux. 



165. Larus minutus, Pall. 



On the 7th of March, 1882, I watched a flock of Little 

 Gulls, numbering from forty-eight to fifty, in the Bay of 

 St. Jean-de-Luz ; about thirty-six of them had already full 

 black heads. 



166. Larus cachinnans. Pall. 



The Yellow-legged Herring-Gull was the only member of 

 the grey-mantled group identified at St. Jean-de-Luz. An 

 adult male which I shot on the 12th of January had bright 

 lemon-coloured legs and feet ; there were no grey mottlings 

 about the head and neck, but only a few dark hair-streaks in 

 front of the eye. 



167. Larus marinus, Linn. 



168. Larus fuscus. 



The Great Black-backed Gull was frequently observed on 

 the coast. On the 1st of March I watched a long flight of at 

 least 200 going steadily out to sea, S.W. direction. The 

 Lesser Black-backed Gull was also identified. 



The Glaucous Gull {Larus glaucus) has been shot near 

 Hendaye. 



169. Rissa tridactyla (Linn.). 



The Kittiwake occasionally came into the bay in severe 

 weather. 



170. Stercorarius catarrhactes (Linn.). 



A Great Skua shot at PAnglet last autumn is in the Bayonne 

 Museum. 



171. Stercorarius pomatorhinus (Temm.). 



172. Stercorarius crepidatus, Gmel. 



I picked up an example of the former at St. Jean-de-Luz 



