[40]Rep. Pac. R. R. Surv., Vol XII., 1859, p. 173.
[41]Baird, Brewer & Ridgway, Land Birds, Vol. I., p. 66 [Reprint].
[42]“American Birds,” by William Lovell Finley (1907), p. 170.
[43]First record by R. H. Lawrence: Two seen on Stevens Prairie [Gray’s Harbor County] April 22 [1891] (Vide Àuk, Vol. IX., Jan. 1892, p. 47). Second record by the author: Male and female with five full-grown young encountered near Sluiskin Falls on Mt. Rainier, July 7, 1908, at an altitude of 6500 feet.
[44]Ridgway: Six specimens.
[45]“The present example of an isolated colony of a particular form, or what must be regarded as the same form in the absence of obvious distinctive characters, is one of several instances which are very troublesome to both the systematist and the student of geographic distribution. The birds of this species occurring, exclusively, in the area defined above are clearly intermediates between P. a. septentrionalis, a form larger and paler than P. a. atricapillus, which occupies the region immediately eastward, and P. a. occidentalis, a form smaller and darker than P. a. atricapillus, which inhabits the region immediately westward. It thus happens that, while these puzzling birds are practically, if not absolutely, indistinguishable from P. a. atricapillus they can hardly be considered exactly the same, since they are everywhere widely cut off from the latter by the very extensive area occupied by P. a. septentrionalis.”—Ridgway.
[46]Shading into the following variety, C. f. occidentalis, upon the lower levels.
[47]“The Birds of Cheney, Washington,” The Condor, Vol. VIII., Jan., 1906, p. 25 [No scientific name given].
[48]“The Birds of N. and M. America,” Vol. III., p. 659.
[49]Cooper and Suckley, Rep. Pac. R. R. Surv. XII., pt. II., 1860, p. 185.