Page [242]. Cancel No. 744.1, Santa Rita Bush-Tit, which proves to be the same as No. 745, Lloyd's Bush-Tit.
Page [243]. Cancel No. 731a, Texan Tufted Titmouse, which proves to be the same as No. 731, Tufted Titmouse.
Page [243]. After No. 732 add: 732a. Sennett's Titmouse (B. a. sennetti). "Similar to B. a. atricistatus, but decidedly larger; upper parts much clearer gray, with little, if any olive tinge; adult female with crest feathers more often and more extensively tipped with gray, and both sexes with the forehead more often tinged with brown or rusty, sometimes deeply so" (Ridgway).
Range.—Central Texas, "from Tom Green and Concho Counties east to the Brazos River, and from Young County south to Nueces and Bee Counties" (A. O. U.).
Page [244]. After No. 741b. add: 741c. Valdez Chestnut-sided Chickadee (P. r. vivax). Like P. r. rufescens in coloration but larger, tail proportionately longer and bill bulkier. W. 2.48; T. 2.32 (Grinnell).
Range.—Prince William Sound Region, Alaska.
Page [244]. Cancel 740a. Kowak Chickadee, and No. 740b, Columbian Chickadee, which prove to be the same as No. 740, Hudsonian Chickadee. Parus h. littoralis becomes No. 740a, Acadian Chickadee.
Page [244]. After No. 738 add: 738a. Bailey's Mountain Chickadee (P. g. baileyæ). Similar to P. g. gambeli, "but coloration dorsally and laterally more plumbeous, less brownish, and bill larger." B. 41 (Grinnell).
Range.—"Mountains of Great Basin region and northern Lower California. Breeds in Canadian and Transition Zones from the Maury Mountains, Oregon, south over Nevada and eastern California to the San Pedro Martir Mountains, Lower California" (A. O. U.).
Page [245]. After No. 736a add: 736b. Florida Chickadee (P. c. impiger). Similar to P. c. carolinensis but darker and decidedly smaller (except bill). W. 2.08; T. 1.81; B. .31 (Ridgway).