[Illustration 285: Creamy.] [Illustration: Gray Kingbird.] [Illustration: Buff.] [Illustration: Arkansas Kingbird.] [Illustration: right hand margin.] Page 284 448. CASSIN'S KINGBIRD. _Tyrannus vociferans._ Range.--Western United States from the Rocky Mountain region to California, and from Wyoming southward. This species is like the last except that the throat and breast are darker. Their habits, nesting habits and eggs are indistinguishable from those of the other Tyrant Flycatchers, and they are fully as courageous in the defense of their homes against either man or bird, their notes resembling those of the common Kingbird of the east. 449. DERBY FLYCATCHER. _Pitangus sulphuratus derbianus._ Range.--Mexico and Central America, breeding north to southern Texas. This handsome bird is the largest of the Flycatcher family found in the United States, being 11 inches in length. It has a black crown enclosing a yellow crown patch; a broad black stripe from the bill, through the eye and around the back of the head, is separated from the crown by a white forehead and line over the eye; the throat is white shading into yellow on the underparts. They are abundant in the interior of Mexico, but can hardly be classed as common over our border, where they nest in limited numbers. Their nests are unlike those of any of our other Flycatchers being large masses of moss, weeds and grass, arched over on top and with the entrance on the side. The three or four eggs are creamy white, sprinkled chiefly about the large end with small reddish brown or umber spots; size 1.15 × .85. [Illustration 286: Buff.] [Illustration: Derby Flycatcher.] [Illustration: Creamy white.] [Illustration: deco.] [Illustration: left hand margin.] Page 285 451. SULPHUR-BELLIED FLYCATCHER. _Myiodynastes luteiventris._ Range.--Mexico and Central America, breeding north to the Mexican border of Arizona. This peculiar Flycatcher, which is unlike any other American species, can only be regarded as a rare breeding bird in the Huachuca Mts. It is 8 inches in length, has a grayish back streaked with black, the tail largely rusty brown and the underparts sulphur yellow, streaked on the breast and sides with dusky; a yellow crown patch is bordered on either side by a stripe of mottled dusky, and is separated from the blackish patch through the eye, by white superciliary lines. Their habits are similar to those of the genus Myiarchus, and, like them, they nest in cavities in trees, and lay from three to five eggs of a creamy buff color thickly spotted and blotched with brown and purplish, the markings not assuming the scratchy appearance of the Crested Flycatchers, but looking more like those of a Cardinal; size of egg 1.05 × .75. Data.--Huachuca Mts., Arizona, June 29, 1901. 4 eggs. Nest in the natural cavity of a live sycamore tree about fifty feet from the ground; composed of twigs. Collector, O. W. Howard. 452. CRESTED FLYCATCHER. _Myiarchus crinitus._