LARID^. 249 



BLACK TERN, Sterna fissipes. A rare bird in 

 Sussex. Has occasionally been killed at the 

 period of the spring and autumnal migrations, 

 when passing to or returning from its summer 

 quarters in more inland counties. 



LITTLE GULL, Larus minutus. A preserved 

 specimen of this scarce gull is in the possession of 

 the Rev. Mr. Dennis, of Seaford, which was killed 

 in that neighbourhood ; and that gentleman was 

 so fortunate as to obtain during the past winter 

 (1849) a second example, alive, which affords a 

 good opportunity of observing its seasonal varia- 

 tions of plumage. I am indebted to Mrs. Rick- 

 man, of Lewes, for a beautiful coloured drawing of 

 this bird, taken early in December, when it had 

 assumed its winter livery. 



BLACK-HEADED GULL, Larus ridibundus. Abun- 

 dant. 



LAUGHING GULL, Larus atricilla. A rare spe- 

 cies. Inserted here on the authority of Montagu. 

 Vide Yarrell. 



KITTIWAKE GULL, Larus tridactylus. Common. 



IVORY GULL, Larus eburneus. Has been occa- 

 sionally obtained in Sussex. Twice near Brigh- 

 ton. There is a specimen, which I have seen, 

 in the possession of Mr. Johnson, a chemist at St. 

 Leonard's, which was found on the beach in a 



