n6 THE BIRDS OF DORSET. 



COMMON GUILLEMOT. U-ria troile, (L.) 



Yarrell, iv. p. 69; Harting, p. 74; Alca troile, Dresser, viii. 

 p. 567; Seebohm, iii. p. 388; Lomvia troile, Ibis List, 

 p. 206; Colymbus troile, Pulteney's List, p. 17. 



During the breeding season the Common Guille- 

 mot resorts to our cliffs in some numbers, depositing 

 a single egg upon a ledge of the rock, without any 

 attempt at a nest. After the breeding season both 

 old and young go out to sea, and are not seen in the 

 cliffs during the winter. The Ringed or Bridled 

 Guillemot, which has a white line round and behind 

 the eye, once thought to be a distinct species, is now 

 considered to be only a variety of Uria troile. Two 

 were picked up after a storm in Christchurch Bay, 

 with a considerable number of the ordinary type. 



A singular variety of this bird, having the bill and 

 legs yelloiv, was shot by Mr. T. M. Pike near Poole, 

 November 29, 1876 (Zoologist, 1877, p. 57). 



BLACK GUILLEMOT. Uria grylle, (L.) 



Yarrell, iv. p. 81 ; Harting, p. 74; Dresser, viii. p. 581 ; Ibis 

 List, p. 207 ; Alca grylle, Seebohm, iii. p. 383 ; Colymbus 

 grylle, Pulteneijs List, p. 1 7. 



The Black Guillemot, as Yarrell states, is occa- 

 sionally procured on the coast of Dorsetshire, but 

 must be regarded as a rare visitor. Mr. H. Groves 

 has one which was shot in Weymouth Bay in the 

 winter of 1855. Another was killed at Swanage 

 Bay in January 1862 (E. Hart), and a third in 

 Weymouth Bay, December 10, 1874. Since then, 



