KEY TO THE SPECIES. 



GROUP I. 



Birds having wings from 3.25 inches to 3.75 inches long.* 



Tringa minutilla. 



No web between toes. 



Least Sandpiper. 



Tringa minutilla. 

 See page 48. 



Toes with small web; bill, usually under .85. 



Semipalmated Sandpiper. 



Ereunetex pusillus. 

 ' See page 51. 



Toes with small web; bill, usually over .85. 



Western Sandpiper. 



Ereunetes occidentalis. 

 Kreunetes pnsillus. _ 



(Foot.) See page o2. 



* For directions for measure nent, see page 8. 



