VOL. VII.] NOTES. 235 



obtained is only a couple of miles from where it was last 

 seen in the Pett district, no doubt it was the same bird. 



H. W. Ford-Lindsay. 



SLAVONIAN GREBES IN LANCASHIRE. 



On October 28th, 1913, I saw a pair of Slavonian Grebes 

 {Colymbus auritus) at the Crook of Lune, Caton, near Lancaster, 

 and Mr. F. W. Smalley informs me that he saw one on 

 Haweswater Lake, Silverdale, north Lancashire, on 

 October 11th. Mitchell, in his Birds of Lancashire, says 

 that the species is an extremely rare winter-visitor to 

 Lancashire, and mentions only five records of its having 

 occurred in the county. To these must be added one from 

 the collection of the late Dr. Cocker, said to have been shot 

 on Windermere Lake, and now in Mr. Smalley's collection. 



H. W. Robinson. 



AVOCETS IN GLOUCESTERSHIRE. 



In March, 1913, four Avocets {Recurvirostra avosetta) were 

 seen together at Stonehouse, on the Severn, Gloucestershire. 

 Fortunately the local wildfowlers were too busy with their 

 salmon nets to try to bag them. H. W. Robinson. 



BONAPARTE'S GULL IN SUSSEX. 



On November 4th, 1913, I was shown a G-uU that had been 

 shot the previous day at the Outfall Pipes, West St. Leonards, 

 Sussex. Upon careful examination I found it to be an 

 immature male Bonaparte's G-ull {Larus Philadelphia). 



This bird is very similar in appearance to an immature 

 Black-headed Gull, but can readily be identified, not only 

 by its smaller size, being intermediate between the Little 

 Gull and the Black-headed, but the primaries are very 

 distinctive. 



In the Black-headed G-ull of the same age the primaries 

 have a white centre with blackish-brown margins to both 

 webs, whereas the Bonaparte's has a dusky brown outer 

 web, the inner web being perfectly white. In the adult 

 birds the same difference occurs, the colour of the margins 

 being black instead of brownish. 



The terminal band of the tail of this specimen is also only 

 about half the width of that of a Black-headed Gull. 



H. W. Ford-Lindsay. 



LITTLE GULL IN LANCASHIRE. 



In view of the fact that the Little Gull {Larus minutus) 

 is only said to have occurred five times in Lancashire 



