426 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I50 



breast, and under tail coverts narrowly and rather indefinitely streaked 

 with gray. 



Iris brown ; bill black, somewhat brownish basally ; legs dull yellow- 

 ish green. 



Measurements (from Ridgway, I.e., p. 206). — Males, wing 116- 

 135 (124.4), tail 45-53 (51.1), exposed culmen 35.5-41 (38.5), tarsus 

 36-43 (39.9) mm. 



Females, wing 120-137 (127), tail 44-58 (51.5), exposed culmen 

 36-44 (39.9), tarsus 39.5-45 (42.9) mm. 



Passage migrant from the north. Rare. 



This interesting sandpiper breeds in tundra areas from northern 

 Alaska and far northern Ontario south to the northern edge of the 

 forests, and spends the northern winter season in southern South 

 America. 



The stilt sandpiper was first recorded in Panama from 2 seen by 

 Arbib and Loetscher, August 22 and 26, 1934 (Auk, 1935, p. 326). 

 Eisenmann noted 3 on the Gatun Dam spillway August 28, 1958. The 

 only other reports are of one that I observed on the mud flats at the 

 mouth of the Rio Chico, March 5, 1956, and one that I collected from 

 4 seen at La Jagua, Panama, March 24, 1964. 



The species is one that may be expected to occur rarely in its mi- 

 grations. It is recorded in Guatemala and Nicaragua to the north, 

 and in Colombia and Ecuador to the south. 



Stilt sandpipers frequent tidal flats and other muddy shores, some- 

 times coming to open pools. It is common for them to wade in water 

 so deep that it nearly reaches the body, and to feed with head and 

 neck immersed. 



TRYNGITES SUBRUFICOLLIS (Vieillot): Buff-breasted Sandpiper; 

 Chorlito Canelo 



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

 1819, p. 465. (Paraguay.) 



Rather small, with short bill; yellowish legs; buffy underneath 

 from bill to tail. 



Description. — Length, 190 to 205 mm. Adults, upper surface in 

 general grayish buff, the feathers with black centers; edge of wing 

 white, narrowly barred with black; greater wing coverts grayish 

 brown, tipped with buff ; primary coverts darker, with a subterminal 

 spot of black, and a narrow tip of white; primaries grayish brown, 

 black at end, tipped with white ; secondaries with outer webs grayish 

 brown at base, dusky at tip, inner webs white, with the tips mottled 



