Above umber brown; markings beneath black; tail-feathers not paler at tip; wing, 3.90; tail, 4.90; bill, .85, slightly curved; tarsus, 1.40; middle toe, .94 (4,016 ♂ Brownsville, Tex.) _Hab._ Eastern Mexico, north to Rio Grande of Texas … var. _longirostris_. 2. H. ocellatus.[23] The markings circular; wing bands conspicuous. Above grayish-brown; markings beneath black; tail-feathers broadly tipped with white; wing, 4.10; tail, 5.60; bill, from rictus, 1.50, moderately curved; tarsus, 1.50. _Hab._ Oaxaca, Mex. 3. H. cinereus. The markings deltoid; wing bands narrow, but sharply defined. Above brownish-cinereous; markings beneath blackish-brown; tail-feathers broadly tipped with white; wing, 4.00; tail, 4.60; bill, .88, much curved; tarsus, 1.30; middle toe, .85 (12,960 “♀”—♂? Cape St. Lucas). _Hab._ Cape St. Lucas, Lower California. B. Spots beneath obsolete, not darker than the plumage above; roundish in form. 4. H. curvirostris. Above cinereous; wing bands distinct; spots below distinct, upon a white ground; femoral region and crissum very pale ochraceous; tail-feathers broadly and sharply tipped with pure white; wing, 4.30; tail, 4.50; bill, 1.00, stout, moderately curved; tarsus, 1.40; middle toe, 1.12 (7,200 ♂ Ringgold Barracks, Texas). _Hab._ from Rio Grande valley in Texas to Cordova, Orizaba, Oaxaca, Colima, and Mazatlan … var. _curvirostris_. Wing bands obsolete, and tail spots very narrow and obsolete; spots below just discernible upon a grayish ground; femoral region and crissum dilute ochraceous-brown; wing, 4.30; tail, 5.20; bill, 1.00, slender, moderately curved; tarsus, 1.30; middle toe, 1.00 (8,128 ♂ “New Mexico”—probably Eastern Arizona). _Hab._ Arizona (Camp Grant) … var. _palmeri_. C. Entirely unspotted beneath. 5. H. redivivus. Anal region and lower tail-coverts light ochraceous. Above soft brownish-cinereous, tail considerably darker; wing bands almost obsolete, and tail-feathers merely diluted at tips. Beneath paler than above,—almost white on throat and abdomen; anal region and lower tail-coverts yellowish-ochraceous. A distinct “bridle” formed by the hair-like tips of the feathers, bordering the throat; maxillary stripe white with transverse bars of dusky; wing, 3.90; tail, 5.25; bill, 1.05, slender, moderately curved; tarsus, 1.25; middle toe, .86 (40,718 ♂ 20 miles from Colorado River, near Fort Mojave). _Hab._ Arizona (Gila River, Fort Yuma, and Fort Mojave) … var. _lecontei_.