G4. MERGANSER. 



483 



Tounrf hi down are dark brown on the upper paits, shading into 

 rcddisli brown on the head, and into chestnut on the sides of the 

 neck ; a white patch on each wing, one on each side of the upper 

 back, and one on each side of the rump ; underparts pure white, and 

 lores white, margined above and below with dark brown (Seebohm). 



Hah. Northern portion of Xorthern Hemisphere, breeding north- 

 ward, south in winter to the basin of the Mediterranean, the Black 

 Sea, the Caspian, China and Japan in the Palaearctic liegion, and to 

 the United States in America, 



* Mentioned in ' Strav Feathers ' as M. castor. 



2i2 



