4io 



BIRDS OF THE BRITISH ISLES. 



much up-curved from the angle, and the white streaks on the 

 upper throat-band number only six, whilst there are ten on 

 the under. In Colymbus glacialis the white streaks on the 

 upper throat-band number about twelve, and on the lower 

 eighteen. The white-billed diver is also larger in size than 

 the latter. 



(Breat Cresteb (Srebe. 



THE Great Crested Grebe (Podiceps cristatus, Linnaeus) is 

 a somewhat locally distributed resident species in the British 

 Isles, and is also found residing in most portions of the 



