Читать книгу Life Histories of North American Jays, Crows, and Titmice - Arthur Cleveland Bent - Страница 13

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This dark race of the Canada jay has been named and described by Dr. Alden H. Miller (1943a), based on a series of 11 birds collected in “the Rainbow Mountain area at the headwaters of the Dean and Bella Coola rivers, in the central coast range of British Columbia,” which constitutes its present known range. He describes it as “similar to Perisoreus canadensis canadensis, but dorsal coloration darker and sootier (near Dark Mouse Gray of Ridgway, Color Standards and Color Nomenclature, 1912), hence less brown; in fresh plumage, dorsal gray collar of neck inconspicuous and in some individuals obsolete; white of forehead of same extent and comparably suffused with gray in fresh plumage, but not noticeably buffy as in P. c. fumifrons; size as in P. c. canadensis. * * * The race P. c. pacificus shows no approach in characters to Perisoreus obscurus of southwestern British Columbia. The coloration dorsally is blue or neutral gray, rather than brown as in obscurus, the shaft streaks of the back feathers are no more apparent than in any race of P. canadensis, and the underparts are deep gray posterior to the throat, not whitish and uniform as in obscurus. * * * Compared with P. c. fumifrons, pacificus is not only distinctly darker but less brown.”

Nothing seems to have been published about its habits.