BRITISH COLUMBIA SUPPLEMENT. 
WITH ANNOTATIONS BY ALLAN BROOKS. 
Faunally speaking, the situation in the southwestern part of British Columbia 1s practi- 
cally identical with that in northwestern Washington. A bird occurring upon either side of 
the line is almost sure to be found upon the other, and it is as impossible, as unnecessary, to 
draw distinctions between these regions. All that has been said in the foregoing pages, there- 
fore, of bird-life in western Washington is equally applicable to the Fraser delta country and 
to the eastern end of Vancouver island. So far as the environs of our two chief cities are 
concerned we should need no “British Columbia Supplement.” A strong similarity exists 
also between the fauna of eastern Washington and our own “dry belt,” insomuch that we 
have recently added to our British Columbia list, chiefly through the commendable activities 
of Mr. Chas. de Blois Green, some of the most characteristic species of the Arid Transition 
zone, such as Williamson’s Sapsucker, the White-throated Swift, the Canyon Wren and the 
Sage Thrasher, formerly supposed not to range north of the Forty-ninth Parallel. But our 
mountainous hinterland does afford characteristic differences; and these, while still remote 
from most of us in experience, are nevertheless of interest to us as residents of British 
Columbia. The northern portion of the Province begins to assume a sub-arctic faunal com- 
plexion, especially in winter; while the ornis of our eastern mountain system not only has 
specialized forms of its own but is tinged strongly by the residue of those tidal waves of 
migration which, sweeping across the central prairies in a northwesterly direction, break 
upon the eastern slopes of the Rockies and spill over into the quieter valleys of the interior. 
A brief account of these peculiar birds is added, with the assurance that thereby we are 
formally completing the list of British Columbia birds, and that we shall be able to obtain 
within the pages of this work information relative to all the birds known to occur in our 
Province. 
DIVISION A. 
EXCEPTIONS. 
Of the 372 species described in the foregoing pages, the following have not 
yet been reported as occurring in British Columbia.4 
Mexican Raven, Corvus corax sinuatus. 
California Jay, Aphelocoma californica. 
Grinnell’s Jay, Cyanocitta stelleri carbonacea, 
Californian Bicolored Blackbird, Agelains gubernatoy californicus. 
Desert Sparrow, Amphispiza bilineata deserticola. 
Sage Sparrow, Amphispiza nevadensis. 
Green-tailed Towhee, Oreospiza chlorura. 
Sierra Hermit Thrush, Hylocichla guttata sequoiensis. 
California Shrike, Lanius Iudovicianus gambelt. 
Ash-throated Flycatcher, Mvyiarchus cinerascens. 
Dwarf Screech Owl, Otus flammeola idahoensis. 
Ferruginous Rough-leg, Archibuteo ferrugineus. 
White-winged Dove, Melopelia asiatica. 
Bob-white, Colinus virginianus. 
California Clapper Rail, Rallus obsoletus. 
California Black Rail, Creciscus coturniculus. 
Whooping Crane, Grus americana. 
American Egret, Herodias egretta. 
Black-crowned Night Heron, Nycticorax nycticorax naevius. 
Snowy Plover, Aegialitis nivosa. 
Forster’s Tern, Sterna forsteri. 
Pacific Eider, Somateria v-nigra. 
Paroquet Auklet, Phaleris psittacula. 
Least Auklet, Aethia pusilla. 
a. Nomention is made here of certain recently elaborated subspecies, such as Fasserel/a tliaca fuliginosa, 
Regulus calendula grinneli1, etc., which are believed to occur in the Province, even though they have not yet 
been discriminated from inclusive or related forms in lists previously published. 
