KEY TO THE SHORE BIRDS OF NORTH AMERICA. 



19 



Tarsus, over 1.75; middle toe, 

 over 1.60; primaries, pale 

 yellowish green; bend of 

 wing with sharp spur. 



Mexican Jacana. 

 Jacana spinosa 

 See page 85. 



Jacana spinosa. 



Section 5. Toes, 4, without web ; bill, under 1.10. 



Upper tail coverts, white ; inner webs of 

 primaries not speckled. 



Tringa i'uscicollis. 



Tringa bainlii. 

 Tail and upper tail coverts. 



Tringa fuscicollis. 



White Rumped Sandpiper. 



Trinfja fuscicollis. 



See page 46. 



Middle upper tail coverts, smoky or dusky, 



often tipped with buff; inner webs of primaries 

 not speckled; sides, white; middle toe and 

 claw, less than .95. 



Baird's Sandpiper. 



Tringa Bairdii. 

 See page 47. 



Tryngites subruticollii- 

 First primary. 



fliddle upper tail coverts, black, often narrowly 

 tipped with brownish buff; inner webs of pri- 

 maries, not speckled ; middle toe and claw, over 

 .95 ; middle tail feathers decidedly longer than 

 the rest. Pectoral Sandpiper. 



Grass Bird. 

 Tringa inaculata. 

 See page 45. 



Inner webs of primaries speckled. 



Buff-breasted Sandpiper. 



Tryngites subruficottis. 

 See page 65. 



