List of British Birds 



Glaucous Gull, 26-33 



in. W 



Kittiwake, 15 in. R 

 Great Skua, 24-25 in. R 

 Twist-tailed Skua, 21 



in. W 

 Richardson's Skua, 20 in. 



R 

 Long-tailed Skua, 22 \ 



in. W 



ORDER PYGOPODES 



Fam. Alcidae. 

 Razorbill, 17 in. R 

 Common Guillemot, 1 8 



in. R 



Black Guillemot, 1 4 in. R 

 Little Auk, 8J in. W 

 Puffin, 12 in. R 



Fam. Colymbidae. 

 Great Northern Diver, 30- 

 33 in. W 



Black-throated Diver, 25 



in. R 

 Red-throated Diver, 21- 



23 in. R 



Fam. Podlcipedidae. 



Great Crested Grebe, 20- 



24 in. R 

 Red-necked Grebe, 16! 



in. W 

 Little Grebe, 8-9 in. R 



ORDER TUBINARES. 



Fam. Procellarudae. 



Fulmar, 19 in. R 

 Manx Shearwater, 13-14 



in. R 



Storm Petrel, 5^ in. R 

 Forked-tailed Petrel, y 



in. R 



The classification followed in this list is that of Lieut. - 

 Colonel Howard Irby. The figures after the names of the 

 birds denote their length in inches, while the letters R., S. 

 and W. stand for Resident, Summer Visitor and Winter 

 Visitor respectively. 



129 



