Range.--Mexico and the border of the United States; common in southern Texas. This odd species has a Cuckoo-like form, but is wholly blue black in color, and has a high thin bill with three conspicuous longitudinal grooves on each side. They build large bulky nests of twigs, lined with leaves and grasses, and located in low trees and bushes. They build in small colonies but do not, as is claimed of the common Ani, build a large nest for several to occupy. They lay from three to five eggs of a greenish blue color, covered with a chalky white deposit. Size 1.25 × 1.00. They are laid in May or June. 385. ROAD-RUNNER. _Geococcyx californianus._ Range.--Western United States from Oregon, Colorado and Kansas, southward; most abundant on the Mexican border, and wintering in central Mexico. This curious species is known as the "Chaparral Cock", "Ground Cuckoo," "Snake-killer," etc. Its upper parts are a glossy greenish brown, each feather being edged or fringed with whitish; the tail is very long, broad and graduated, the feathers being broadly tipped with white. They are noted for their swiftness on foot, paddling over the ground at an astonishing rate, aided by their outstretched wings and spread tail, which act as aeroplanes; their legs are long and have two toes front and two back. Their food consists of lizards and small snakes, they being particularly savage in their attacks upon the latter. They build rude nests of sticks and twigs, in low trees or bushes, and during April or May, lay from four to ten eggs, depositing them at intervals of several days. They are pure white and measure 1.55 × 1.20. [Illustration 245: Greenish blue.] [Illustration: Road Runner. Groove-billed Ani.] [Illustration: White.] [Illustration: deco.] [Illustration: right hand margin.] Page 244 386. MANGROVE CUCKOO. _Coccyzus minor minor._ Range.--West Indies, Mexico and South America, north regularly to southern Florida. This species is very similar to our common Yellow-billed Cuckoo, but the whole underparts are deep buff. It is a common species and nests abundantly in the West Indies, but occurs only in limited numbers in southern Florida. Their nests are shallow platforms of twigs and rootlets, placed in bushes and low trees, and upon which they lay three or four pale greenish blue eggs, similar to those of the Yellow-billed species but averaging smaller; size 1.15 × .85. 386a. MAYNARD'S CUCKOO. _Coccyzus minor maynardi._ Range.--Bahamas; accidental on Florida Keys. This is a slightly smaller and paler form than the preceding. 387. YELLOW-BILLED CUCKOO. _Coccyzus americanus americanus._ Range.--United States east of the Plains and from southern Canada southward.