BIRDS OF THE BRITISH ISLES. 



265 



white ; scapulars and innermost secondaries, black ; pri- 

 maries, brown ; rump, tail-coverts, and lower parts (except 

 a white patch on flanks), black ; irides, yellow ; bill and 

 naked elevated basal tubercule, rich orange, the latter bor- 

 dered with black ; upper throat has a V-shaped mark of 

 black; legs and feet, orange. Length, from twenty-two to 

 twenty-four inches. 



THE Hooded Merganser (Mergus cucullatus> Linnaeus) is a 

 rare nomadic autumn and winter migrant to the British 

 Islands, and is also found inhabiting the Northern Nearctic 



