DIVER. NATATORES. COLYMBUS. 413 



and beauty, and numbers of them are dressed and made into 

 garments. That the Lesser Imber of BEWTCK is the young 

 of the year of this species, I have no doubt, the original spe- 

 cimen from which his figure was taken having been sent to 

 me for inspection. 



PLATE 77. Represents the Adult bird in about two-thirds 

 of the natural size, taken from a very perfect specimen 

 that was killed on the river Tay. 



Bill brownish-black, strait, strong, and tapering, with the General 

 upper mandible arched. Irides reddish-brown. Head tion. nP 

 and neck deep smoke-grey, darkest upon the forehead Adult 

 and region of the eyes. Throat and fore part of the 

 neck black, glossed with rich auricula purple and green. 

 Below the throat a narrow transverse band of black and 

 white. From the ears, and on each side of the neck, ex- 

 tends a broad band, rayed longitudinally with black and 

 white, of the same raised appearance as in Cotymb. 

 glacialis. Upper plumage deep glossy black, the side 

 feathers of the mantle, and the greater part of the sca- 

 pulars, with large quadrangular white spots, forming 

 upon the latter about fifteen transverse bars. Wing- 

 coverts spotted with white. Sides and flanks black. 

 The rest of the under plumage pure white. Legs deep 

 clove-brown outwardly, paler within. Both sexes alike. 

 The young of the year, or BEWICK'S Lesser Imber, is Young 

 very similar to C. glacialis at the same age. Head and 

 back part of the neck grey. Throat and under parts 

 white. Back deep grey, or clove-brown, margined with 

 ash-grey. At the next moult, the head and nape of the 

 neck become a purer grey, and some black feathers ap- 

 pear on the under part of the neck. The feathers of 

 the back also become darker, and a few black ones are 

 seen interspersed. The two succeeding moults gra- 

 dually develope the distinctive markings, and the plum- 

 age is perfected at the conclusion of the third year. 



