FAMILY SCOLOPACIDAE 423 



Measurements (from Ridgway, I.e., p. 281). — Males, wing 114-122 

 (118.7), tail 48-53 (51.1), exposed culmen 20.5-23 (21.7), tarsus 

 20-23 (21.1) mm. 



Females, wing 119-126 (122.3), tail 49-54 (51.7), exposed culmen 

 21.5-24 (22.8), tarsus 20-23 (21.4) mm. 



Passage migrant from the north. Status uncertain; reported defi- 

 nitely only during southward flight. 



Baird's sandpiper is another species that nests in the far northern 

 tundras, from northeastern Siberia to Greenland, and winters in South 

 America. Griscom (Bull. Mus. Comp. Zool., vol. 78, 1935, p. 307) 

 included the species with the statement "Canal Zone on migration 

 (once)." Hellmayr and Conover (Cat. Birds Amer., pt. 1, no. 3, 

 1948, p. 190) say "a few records from Panama," with no details of 

 occurrence. The only other definite report is of sight records by 

 Imhof (Auk, 1950, p. 256), who recorded these birds regularly from 

 September 19 to October 28, 1942, at rain pools on the grass grown 

 parade grounds at Fort Amador (Pacific side) and Fort Davis 

 (Caribbean side), in the Canal Zone. I have seen no specimens from 

 Panama. 



EROLIA MELANOTOS (Vieillot): Pectoral Sandpiper; 

 Playerito Pectoral 



Tringa melanotos Vieillot, Nouv. Diet. Hist. Nat., nouv. ed., vol. 34, Dec. 1819, 

 p. 462. (Paraguay.) 



Of medium size, with foreneck and breast gray, washed with buff, 

 and streaked heavily with dusky in a solid pattern, in sharp contrast 

 with the white throat, lower breast, and abdomen. 



Description. — Length, 220 to 235 mm. Breeding dress, feathers of 

 upper surface heavily black centrally, with those on crown and upper 

 back, edged with buff and cinnamon-buff, and on hindneck and sides 

 of neck, bordered widely with buff; tertials edged broadly with buff 

 and cinnamon-buff ; wing coverts dusky bordered with buff and cin- 

 namon-buff; lower back, rump, and upper tail coverts plain black; 

 outer primaries black; inner primaries and secondaries dark gray, 

 the latter bordered with white ; central tail feathers black ; outer pairs 

 brownish gray, edged lightly with white; upper foreneck to upper 

 breast grayish buff, lined narrowly with dull black, the whole sharply 

 cut off from the white of the throat, lower breast, and abdomen ; under 

 tail coverts white, with shaft lines of dusky. 



Winter plumage, similar, but with the cinnamon markings on the 

 upper surface reduced or absent, and foreneck and upper breast gray- 

 ish white. 



