Perching Birds Chiefly Gray, Black, or Black and White. 
731. Tufted Titmouse (Bolopbus bicolor). L. 6. 
Ads, Head crested; forehead black; above gray; below 
whitish, sides rusty. Notes. A clearly whistled péto, 
péto, and a hoarse de-de-de. 
Range.— Eastern United States; resident from the Gulf States north 
to northern New Jersey and southern lowa; straying somewhat 
further north in summer after breeding. 
73a. Texan Tufted Titmouse (8. 6. texensis). 
Similar to No. 731, but forehead rusty, upperparts 
aler. 
Range.—Southeastern Texas. 
732. Black-crested Titmouse (Acolophus atricrist- 
atus). L.6.1. Ads. Head with a black crest; fore- 
head white or tinged with rusty; back gray; below 
whitish, sides rusty. Notes. An abbreviation of the 
call of No. 731, pete-pete-pete-pete. (Bailey.) 
Range.—‘‘From southeastern Texas west to El Paso, south to east- 
ern Mexico.’’ (Bailey.) 
751. Blue-gray Gnatcatcher (Poloptila caerulea). 
L. 4.5; T. 2. Outer tail-feathers with white, white 
tip of next to outer one at least 1.00 long. Ad. <j. 
Above bluish gray, forehead narrowly black; below 
grayish white. Ad. 2. Similar, but lighter gray; no 
black on forehead. Notes. Call, a twanging tng; 
song, sweet and varied but of small volume. 
Range.—Eastern United States, west to Colorado; breeds from the 
Gulf States north to southern New Jersey, and Ontario; wanders cas- 
ually as farnorth as Maine and Minnesota; winters from the Gulf 
States southward. 
75 1a. Western Gnatcatcher (P. c. obscura). Simi- 
lar to No. 751, but slightly grayer above; white tip to 
next to outer tail-feather Jess than 1.00 long. 
Range.—Western United States from western Texas west to Cal- 
ifornia and Lower California. 
752. Plumbeous Gnatcatcher (Polioptila plumbea). 
L. 4.4. Outer wing of outer tail-feather wholly white, 
inner web black except at tip. Ad. 3’. Crown shin- 
ing black, back blue-gray; underparts grayish white. 
Ad. 2 and Yng. §\. Similar, but no black on head. 
Yng. 2. Back and sides with a brownish wash. 
Notes. Call, a faint mew; song, ‘‘a harsh ditty of five 
notes, something like a Wren’s song with notes like 
those of a Swallow. (Cooper.) 
Range.—Mexican boundary region, from western Texas to south- 
eastern California and Lower California. 
753. Black-tailed Gnatcatcher (Polioptila californ- 
ica). L.4.53T. 2.1. Similar to No. 752, but outer 
vane of outer tail-feather black margined with white; 
back darker, underparts much grayer, flanks brownish. 
Range.—Pacific coast region of southern California and northern 
Lower California. 
243 
