366 BRITISH BIRDS. 



by the chestnut breast-band being generally replaced by brownish-grey 

 feathers with brown centres, and by the belly being browner and darker 

 and by the absence of buff-tips to the primary and greater wing-coverts. 



WHITE-SPOTTED BLUETHROAT. 



Gyanecula suecica wolfi, Brehm. 



The sequence of plumage of this form appears to be exactly- 

 similar to that of the last, the moults are precisely the same, 

 and the plumages of the males might be described in exactly 

 similar terms with the following differences in regard to the 

 throat-spot. 



First and Adult Winter-Plumages. Throat-spot silky- 

 white, with greyish- white and often rufous-buff fringes ; the 

 basal half of the feathers, especially on the lower part of the 

 spot, is of a more silky- white than in C. suecica. 



First and Adult Summer-Plumages. Throat-spot silky- 

 white, the feathers occasionally with red tips, but in such 

 cases there are always some entirely white feathers, and the 

 silky-white bases may easily be seen by turning up the 

 feathers. The white spot becomes more distinct as the 

 summer advances and the fringes of the feathers wear off, 

 but the area covered by the white spot varies in size, and 

 exceptionally specimens have an entirely blue throat without 

 any white in the feathers at all. 



N.B. — I can find no differences in the plumages of the 

 females and juveniles of the two forms, but I have not been 

 able to examine sufficient skins carefully collected at the 

 breeding -place with the males to make certain that there are 

 no differences. 



