No. 15. 



Aythya vallisneria. 



Adidt Male. Head and greater part of neck brownish red 

 or mahogany color ; top of head and about bill of deeper tint, or 

 blackish ; reddish tone extending farther down neck than in 

 species ]^o. 16 (sometimes confounded with Ko. 15), and ap- 

 proaching less nearly a true red; remainder of neck, fore part 



No. 15. Adult Male. 



of body, and rump blackish brown; wings principally gray. 

 Back, shoulder-feathers, sides, and about vent white, delicately 

 dotted and lined in wavy pattern with dusky gray ("wrapt in 

 pencilled snow ") ; front of wings with wavy markings in similar 

 fashion. Under parts of body, not previously described, pure 



