106 



KEY TO THE BIFiDS OF EASTERN NORTH AMKRICAc, 



FAMILY RECURVIROSTRID^. 

 Avocets and Stilts. 



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



^J,»J, 1 ,^,!W^I.'-. M"'i-' 



"-^ 



A vocet. 



Stilt. 



Head and neck, pale rufcus (sum- 

 mer) ; white or grayish (winter) : 

 back and tail, white ; axiliars, white ; 

 l)elly, white; first primary, dark 

 witli dark shaft ; bill, curved up- 

 ward; toes, four. 



lii'cnmirostni nniprir(nia. 

 American Avocet. 

 See No. 182. 



Reciirviro!<tra aiiie: icMiia. 



