106 



KEY TO THE BIRDS OF EASTERN NORTH AMKRlCAc 



FAMILY RECURVIROSTRIOC. 



Avocets and Stilts. 



Tarsus over 3.50 inches ; bill, curved upward or straight. 



Avocet. 



Stilt. 



Head and neck, pale rufcus (sum- 

 mer) ; white or grayish (winter) : 

 back and tail, white ; axillars, white ; 

 belly, white; first primary, dark 

 with dark shaft ; bill, curved up- 

 ward; toes, four. 



Reciircirostra americana. 

 American Avocet. 

 See No. 182. 



Reourvirostra americana. 



