62 



H. I). GOOD A I.E. 



Plate III. 



Fig. 6. Feathers from dorsal surface near juncture of neck with body. A, B, 

 29 c?'. breeding plumage; A, common type. C, 29 d^, summer plumage. D-F, 

 normal females; D, 26 9 ■ November; F, 26 9 , August; £,41 9 • G-J, 24 9 . 

 castrated; G, H, August; /, J, November; I is more common than J. 



