152 SNIPES, SANDPIPERS, ETU 



II. Bill under 200. 



A. Tail with cross-bars. 



a. Wing over 5'75. . 



a 1 . Outer tail-feathers white, more or less barred ; outer primary with- 

 out bars 255. YELLOW-LEGS. 



a*. Outer primary with numerous black bars. 



261. BARTRAMIAN SANDPIPER. 



b. Wing under 5'75. 



b 1 . Under parts white, with numerous round blackish spots ; upper parts 

 brownish gray, barred with blackish . . 263. SPOTTED SANDPIPER. 



ft a . Under parts white, breast streaked with blackish ; upper parts fus- 

 cous, spotted with whita 256. SOLITARY SANDPIPER. 



b*. Under parts tinged with buffy, inner web of outer primary speckled 

 with blackish 262. BUFF-BREASTED SANDPIPER. 



b 4 . Under parts white, breast washed with grayish, inner primaries and 

 secondaries with a concealed white patch. 



263. SPOTTED SANDPIPER (lin.). 



B. Tail without cross-bars, toes 4. 

 a. Bill over 1-10. 



a*. Middle upper tail-coverts with cross-bars or streaks. 



a*. Tarsus over T50 233. STILT SANDPIPER. 



a'. Tarsus under 1 -50, wing under 6'00. . 244. CURLEW SANDPIPER. 



a*. Tarsus under 1-50, wing over 6 - 00 234. KNOT. 



b 1 . Middle upper tail-coverts black or fuscous, without bare; bill 



straight. 

 b*. Tarsus under 1-50 ; upper parts blackish, more or less margined 



with gray 235. PURPLE SANDPIPER. 



b*. Tarsus under T50 ; upper parts more or less margined with rufous. 



239. PECTORAL SANDPIPER. 



b*. Tarsus over 1-50 260. RUFF. 



c l . Middle upper tail-coverts grayish, bill curved slightly downward. 



243a. RED-BACKED SANDPIPER. 

 6. Bill under MO. 

 />'. Wing under 4-00. 

 b*. Toes partly webbed. 



246. SEMIPALMATED SANDPIPER. 247. WESTERN SANDPIPER. 



b*. Toes not webbed 242. LEAST SANDPIPER. 



c 1 . Wing over 4 - 00, inner webs of primaries plain. 

 c 9 . Breast white or whitish, streaked or spotted with blackish; mid- 

 dle upper tail-coverts white . . 240. WniTE-RrMPKi> SANHPIPKR. 

 <t*. Breast buffy, heavily spotted or streaked with blackish ; middle 

 upper tail-coverts black, slightly margined with rufous. 



239. PECTORAL SAXDPIPKR. 



c*. Breast buffy lightly spotted or streaked with black ; middle upper 

 tail-coverts fuscous, lightly margined with buffy. 



241. BAIKII'S SAMH-IPER. 

 d l . Wing over 4'00, inner webs of primaries speckled. 



262. BUFF-BREASTED SANDPIPER. 



C. Tail without cross-bars, toes 8 248. SANDERLINO, 



