INCHES. Pygmy size Length up to 5.00 Warbler size 5.00-6.00 Sparrow size 6.00-7.50 Chewink size 7.50-9.00 Robin size 9.00-12.00 Little Hawk size, Teal size, Tern size 12.00-16.00 Crow size 16.00-22.00 Gull size, Brant size 22.00-30.00 Eagle size, Goose size 30.00-42.00 Giant size 42.00 and upward Measurements are given in inches and hundredths and in millimeters, the latter enclosed in parentheses. KEY OF ABBREVIATIONS. References under Authorities are to faunal lists, as follows: T. Townsend, Catalog of Birds, Narrative, 1839, pp. 331-336. C&S. Cooper and Suckley, Rep. Pac. R. R. Surv., Vol. XII., pt. II., 1860, pp. 140-287. L¹. Lawrence, Birds of Gray’s Harbor, Auk, Jan. 1892, pp. 39-47. L². Lawrence, Further Notes on Birds of Gray’s Harbor, Auk, Oct. 1892, pp. 352-357. Rh. Rhoads, Birds Observed in B. C. and Wash., Proc. Acad. Nat. Sci. Phila., 1893, pp. 21-65. (Only records referring explicitly to Washington are noted.) D¹. Dawson, Birds of Okanogan County, Auk, Apr. 1897, pp. 168-182. Sr. Snyder, Notes on a Few Species, Auk, July 1900, pp. 242-245. Kb. Kobbé, Birds of Cape Disappointment, Auk, Oct. 1900, pp. 349-358. Ra. Rathbun, Land Birds of Seattle, Auk, Apr. 1902, pp. 131-141. D². Dawson, Birds of Yakima County, Wilson Bulletin, June 1902, pp. 59-67. Ss¹. Snodgrass, Land Birds from Central Wash., Auk, Apr. 1903, pp. 202-209. Ss². Snodgrass, Land Birds Central and Southeastern Wash., Auk, Apr. 1904, pp. 223-233. Kk. Keck, Birds of Olympia, Wilson Bulletin, June 1904, pp. 33-37. J. Johnson, Birds of Cheney, Condor, Jan. 1906, pp. 25-28. B. Bowles, Birds of Tacoma, Auk, Apr. 1906, pp. 138-148. E. Edson, Birds of Bellingham Bay Region, Auk, Oct. 1908, pp. 425-439. For fuller account of these lists see Bibliography in Vol. II. References under Specimens are to collections, as follows: