Range.--Pacific coast; breeds from northern British Columbia to Alaska; winters south to California.
=--Shufeldt Junco= (_J. o. shufeldti_). Similar to No. 567a, but larger, W. 3.1, brown of back less intense.
Range.--Pacific coast; breeds from Oregon north to British Columbia (and eastward in humid regions to Montana?); winters south to northern Mexico.
=567b. Coues Junco= (_J. o. connectens_). Similar to _shufeldti_, but back paler, brownish gray, breast grayer, sides with less pinkish brown, head and breast still sharply defined from adjacent areas.
Range.--Breeds in the interior of British Columbia and probably in arid districts southward (breeding areas not definitely known); winters southward doubtless to Mexican boundary.
=567c. Thurber Junco= (_J. o. thurberi_). Similar to No. 567, but back much paler, a bright pinkish brown; head and breast black as in No. 567.
Range.--Breeds in mountains from southern Oregon south to southern California; east to western Nevada.
=567d. Point Pinos Junco= (_J. o. pinosus_). Similar to No. 567c, but throat and breast slate-color.
Range.--Santa Cruz district of California; breeds from King Mountain, south at least to Point Sur, County; wanders eastward in winter into Santa Clara and San Benito Valleys. (Grinnell.)
=733. Plain Titmouse= (_Bæolophus inornatus_). L. 5.5. _Ads._ Head crested; above grayish _brown_; below grayish _white_, belly white, sides often buffy. _Notes._ Similar to those of the Tufted Titmouse, but weaker and less varied. (Ridgw.)
Range.--California, west of the Sierra; north to Oregon.
=733a. Gray Titmouse= (_B. i. griseus_). Similar to No. 733, but above _gray_, below whitish _gray_, no buff on sides.
Range.--Southwestern United States: from southeastern California and Nevada to Colorado and New Mexico.
=733b. Ashy Titmouse= (_B. i. cineraceus_). Similar to No. 733a, but underparts grayish _white_, not whitish _gray_.
=743. Bush-Tit= (_Psaltriparus minimus_). L, 4.2; T. 2.1. _Ads._ Crown _sooty_ brown; back grayish brown; below brownish white, sides darker.
Range.--Pacific coast from northern California to Washington.
=743a. California Bush-Tit= (_P. m. californicus_). Similar to No. 743, but crown much lighter, brighter brown, quite different from the brownish gray back; underparts paler. _Notes._ When feeding, a faint _tsit_, _tsit_, _tsit_, _tsit_, when moving about, _tsit_, _tsit_, _tsit_, _sre-e-e-e_; _tsit_, sre-e-e-e; when a bird is separated from its companions, same as last but uttered more hurriedly; alarm note, a greatly intensified _tsit''_; _tsit'_; _tsit'_; _tsit'_: in presence of Hawk or Owl a shrill, quavering trill, _sre-e-e-e-e-e_. (Grinnell.)