292 BRITISH BIRDS. 



coverts, which are pure white. The tail is also white, 

 with the exception of the terminal half of the central and 

 the tips of the remaining feathers, which are black. The 

 young bird is described as dull black, the under tail- 

 coverts tipped with dull white, the upper tail-coverts 

 pure white, and the tail black, tipped with white. 

 (References : J. I. S. Whitaker, The Birds of Tunisia, L, 

 p. 56; Irby, Birds of Gibraltar, p. 41 ; Colonel Willoughby 

 Verner, My Life among the Wild Birds in Spain, p. 289 ; 

 Bree, Birds of Europe, II., p. 89; H. E. Dresser, Birds 

 of Europe, II., p. 247; see also Konig, J. /. 0., 1895, 

 Taf. vi. and p. 385.) 



N. F. Ticehurst. 



