No. 4. 

 Snow Geese. 



Adult. White, with end of wing black ; foreparts of plu- 

 mage frequently stained with reddish brown, this generally more 

 noticeable on front of head. Bill commonly light purplish red, 

 but variable from a more dusky tone to flesh-color, with black 



Adult Snow G 



"grinning" recess along its sides. Legs deep purplish red, 

 though also variable. 



Young. Upper parts bluish gray or lead-color, more or less 

 varied with white ; end of wing (or flight-feathers) as in adult. 

 Bill and legs dusky. 



