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:
| U. of W. | University of Washington Collection; (U. of W.) indicates lack of locality data. |
| P. | Pullman (State College) Collection. P¹. indicates local specimen. |
| Prov. | Collection Provincial Museum, Victoria, B. C. |
| B. | Collection C. W. & J. H. Bowles. Only Washington specimens are listed. |
| C. | Cantwell Collection. |
| BN. | Collection Bellingham Normal School. |
| E. | Collection J. M. Edson. |