170 BIRDS. 



C. adamsi, G. R. Gray. White-billed Northern Diver. One shot at 

 Achaglachach, L. Fyne, autumn, 1893, identified by Dr. Bowdler Sharpe 

 (A Handbook to the Birds of Great Britain, iv., p. 304). 



C. arcticus, Linnaeus. Black-throated Diver. Probably not r. in the Firth 

 from autumn to spring. 



C. septentrionalis, Linnaeus. Red-throated Diver. Very c. in estuary and 

 Firth from autumn to spring. Has nested in Arran. 



Fam. Podicipedidae. 



Podicipes cristatus (Linnaeus). Great-Crested Grebe. A few pairs have 



nested for the past twelve years on lochs in E. Renfrew where the bird 



is well-known. Still r. in other parts of Clyde. 

 P. griseigena (Boddaert). Red-necked Grebe. R. ; has occurred in Lanark, 



Renfrew and Ayr. 

 P. auritus (Linnaeus). Slavonian Grebe. Unc., but a few have occurred all 



over "Clyde." 

 P. fluviatilis (Tunstall). Little Grebe. C. 



ORDER TDBINARES. 



Fam. Procellariidae. 

 Procellaria pelagica, Linnaeus. Storm-Petrel. Occasionally after storms. 



Has nested on Ailsa Crais;. 

 Oceanodroma leucorrhoa (Vieillot). Leach's Fork-tailed Petrel. A few 



have been found after storms. 



Fam. Puffinidae.| 



Puffinus anglomm (Temminck). Manx Shearwater. Occasionally in the 

 Firth. 



