^88 G U L L. 



and formed not greatly unlike that of the Skua, but is flenderer, and 

 lefs hooked: the noftrils come forward on the bill, and are placed 

 in a kind of cere, as in that bird : the head and neck are dirty 

 white ; the fides of the lad marked with dufky : breaft and 

 belly white, crofted with numerous dufky and yellowifh lines : 

 fides and vent barred tranfverfely with black and white : the 

 back, fcapulars, wing coverts, and tail, black, beautifully edged 

 with white, or pale ruft-colour : the (hafts and tips of the quills 

 white ; the exterior web, and upper half of the interior, black ; 

 but the lower part of the latter white: tail black, tipped with 

 white ; the two middle feathers near an inch longer than the 

 others; the fhafts white; the exterior webs of the outmoft fpotted 

 with ruft-colour : the legs of a blueilh lead-colour : lower part 

 of the toes and webs black. This defcription is from the Bri- 

 tijh Zoology. 



A bird of this kind was taken near Oxford, and another met 

 with between the iflands o£Teneriffe and Bonavifia*. 



In the Leverian Mufeum is one of this fpecies, but much fmall- 

 er than the above-defcribed : the general colour brown : the 

 head and neck crofted with numerous tranfverfe darker lines : 

 breaft and belly mottled with dufky white ; fides barred with 

 the fame : bafe of the tail white ; the reft of its length dufky 

 black ; fliape rounded ; the two middle feathers not particularly 

 longer than the others : legs, and half the toes, and webs, yel- 

 lowifh brown ; the end half black. 



* Haiukef. Voy.\. p. 15. — The dung of this bird is red; fuppofed to be 

 owing to its feeding on the Helix janthina, Lin. the inhabitant of which furnilhed 

 the purpura of the ancient Greeks. — This (hell faid to be found on the coafts of 

 Scmtr/etjhire, and thofe of South Wales. —See Phil. Tranf. vol. xv. p. 1278. 



Mr. 



