706 EEPORT OF STATE GEOLOGIST. 



collectors have my thanks. Mr. E. W. Nelson reports two occurrences 

 near Chicago, one August 8, 1873, the other, September 10, 1873. 

 (Birds N. E. 111., p. 126.) Mr. J. G. Parker, Jr., collected a bright 

 female, from a flock of four at Mud Lake, July 25, 1893, and a young 

 bird August 7, 1893. Mr. F. M. Woodruff reports it from Cook 

 County, 111., near the Indiana line, April, 1890; July 25, 1893, and 

 September 23, 1893 (The Auk, April, 1896, p. 180), and Mr. J. G. 

 Parker, Jr., adds from the same vicinity the record of a young bird 

 August 7, 1893. In Ontario, Mr. Mcllwraith has noted it June 25, 

 July 28, and September 23 and 26. Since it breeds far to the north- 

 ward, there seem to be individuals wandering about, every month from 

 June to October, some of which, perhaps, do not go to the breeding 

 grounds. 



49. GENUS TRINGA LINN^US. 



a 1 . Wing 6.00, or more ; middle pair of tail feathers not longer than the rest. Sub- 

 genus TRINGA. T. canutus Linn. 93 

 a 2 . Wing under 6.00; middle pair of tail feathers longer and more pointed than 



the rest. 

 ft 1 . Tarsus about equal in length to bill. 



c 1 . Wing more than 4 00. Subgenus ACTODROMAS Kaup. 



d 1 . Wing 5.00, or more ; rump and middle upper tail coverts plain black or 

 dusky. T. maculata Vieill. 94 



d 2 . Wing less than 5.00; middle upper tail coverts plain dusky. 



T. bairdii (Cones). 95 



c 2 . Wing under 4.00; size very small. T. minutilla Vieill. 96 



b 2 . Bill very long, nearly as long as tarsus and middle toe; decidedly curved 

 downward at the end. Submenus PELIDXA Cuvier. 



P. alpina pacifica (Coues). 97 



Subgenus TRIXGA. 



93. (234). Tringa canutus LINN. 



Knot. 



Adult in Summer. Above, brownish-black, each feather tipped 

 with ashy-white, and tinged with reddish on scapulars; below, uni- 

 form brownish-red, much as in the robin, fading into white on the 

 flanks and crissum; upper tail coverts, white with dusky bars, tail 

 feathers and secondaries, grayish-ash with white edges; quills, black- 

 ish; gray on the inner webs and with white shafts; bill and feet, 

 blackish. 



Immature. Above, clear ash, with numerous black and white semi- 

 circles; below, white, more or less tinged with reddish, dusky speckled 

 on breast, wavy barred on sides. 



Length, 10.00-11.00; wing, 6.50; tail, 2.50; tail, nearly square. 



