448 



Key to Plate No. 30 Plate No. 30 



WINTER PLUMAGE 



(A) HOODED MERGANSER, adult male. 



(B) HOODED MERGANSER, adult male wing. 



(C) HOODED MERGANSER, adult female. 



(D) HOODED MERGANSER, adult female wing. 



Chief distinguishing features of HOODED MERGANSER: MALE, (a) 

 Hind toe with lobe, (b) typical merganser bill, narrow, cylindrical and 

 toothed, but short and black. FEMALE, (a) Hind toe with lobe, (b) typical 

 merganser bill but short and dark. 



WINTER AND SUMMER PLUMAGES 



(E) RUDDY DUCK, adult male in summer. 



(F) RUDDY DUCK, adult male in winter. 



(G) RUDDY DUCK, adult female (winter and summer). 



(H) RUDDY DUCK, adult wing (both sexes). 



Chief distinguishing features of RUDDY DUCK: MALE, (a) Hind toe 

 with lobe, (b) spike-like tail, with practically no coverts, (c) in winter, 

 solidly white cheeks and dark crown. FEMALE, (a) and (b) as in male, 

 (c) dark crown and whitish or mottled cheeks. 



Autumn Phi mage, Hooded Merganser, Plate No. 29. 

 Downy Young, Plate No. 35. 



Text: Hooded Merganser, page 343; Ruddy Duck, page 364. 



