SLENDER-BILLED GULL. 77 



In some respects this description accords with the specimen from 

 which my figure and description are taken, but in that the tail is 

 pure white. The skin of the young in down, and eggs are from 

 my own collection, and were sent to me by Dr. Cullen, of Kustendji, 

 where they were taken. 



It has also been figured by Bonaparte, in Icon. Faun. Ital., fascic 

 43, fig. 8. 



