KEY TO Tin: \\'A'1"1-:U IMKDS Ol' II.ORIDA. 



Subgenus PELIDNA Cuv. 



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Leiiirth, S 



TRINGA ALPINA PACIFICA (Cout's). 

 Red=backed Sandpiper. 



,lt///// in siiiiuiicr: Tlie fealhers on the top of the head and 

 back bright rufous brown lieavily blotched with black on the 

 central part of each feather; throat whitish ; breast streaked 

 with l)lack : belly black on the upper part, becominir white on 

 the lower belly and crissum : bill black. 



Aihilt ill -a'iiitn-: I'pper parts gray, slightly mottled; 

 throat wliite: breast gray, the shafts of the feathers dark 

 brown : I'elly and under tail coverts pure white ; a faint dull 

 white superciliary line. 

 Wing, 4.75 ; Tarsus, i.io; Bill, 1.65. 

 Ranges throughout North America, breeding far northward. It occurs 

 on the Athmtic coast during migrations. 



The e<^<^s are buffv white, sometimes bhiish white, mottled with chocohite 



at the kirger end. 



Subgenus ANCYLOCHEILUS Kaup. 

 Genus EREUNETES Illiger. 



EREUNETES PUSILLU5 {Linn.). 

 Semipalmated Sandpiper. 



Ereunetes pusillus 

 (foot). 



Adult in Slimmer: Heavily marked with dark brown 

 and tawny on the top of the head and Ijack; forehead 

 whitish ; under parts and throat white : breast mottled with 

 grayish ; belly white : iocs -a'ii/i smali -a'cb. 



Adult in winter : Upper parts grayish, mottled with brown 

 on the head, and the feathers showing dark brown edged with 

 white on the back: throat white ; breast very faintly wa.shed 

 Avith gray, which is sometimes very indistinct ; belly and 

 under tail coverts white ; toes ivitJi small loeb. 

 Length. 6.25 ; Wing, 3.70: Tarsus. .75 ; Bill. .So. 



Ranges from Labrador southward to tlie West Indies, and is common on 

 the Atlantic coast during migrations. This species may be distinguished 

 from the Least Sandpiper by the partly webbed toes. 



