240 SNOW-BIRD. 



forked, the two exterior feathers wholly white, which are flir- 

 ted out as it flies, and appear then very prominent; the bill and 

 legs are of a reddish flesh colour; the eye bluish black. The fe- 

 male differs from the male in being considerably more brown. 

 In the depth of winter the slate colour of the male becomes 

 more deep and much purer, the brown disappearing nearly alto- 

 gether. 





