542 BLACK HEAD GULL. Class II. 



on his death, they never fail to fhift their quarters 

 for a certain time. 



Whitelock) in his annals, mentions a piece of 

 ground near Port/mouth, which produced to the 

 owner forty pounds a year by the fale of Pewits, 

 or this fpecies of gull.. Thefe are the See-gulles that 

 in old times were admitted to the noblemens ta- 

 bles*. 



The notes of thefe gulls diftino-uim them from 

 Descrip. any others j being like a hoarfe laugh. Their weight 

 is about ten ounces : their length fifteen inches ; 

 their breadth thirty- feven : their irides are of a 

 bright hazel : the edges of the eye-lids of a fine 

 fcarlet ; and on each, above and below, is a fpot 

 of white feathers. Their bills and legs are of a 

 fanguine red : the heads and throats black or 

 dufky : the neck, and all the under fide of the bo- 

 dy, and the tail, a pure white: back and wings am. 

 colored : tip, and exterior edge of the firft quil-fea- 

 ther black j the reft of that feather white; the 

 next to that tipt with black, and marked with the 

 fame on the inner web. 



A Variety. La Grr.nde Mouette blanche. Wil. orn. 348. Rati fyn. av, 

 Bclon. 17c. Lams canus. Scopdi, No. 104. 



THIS was taken in a trap near my houfe, Ja- 

 nuary 2£th, 1772. and feeroed» only a varie- 



* /7 ; £ Appendix. 



