In. Total length 9¾ Wing folded 6½ Tail 5 Tarsi ⁸⁄₁₀ From tip of beak to rictus 1 Of middle toe without the claw ⁷⁄₁₀ Habitat, Valparaiso Chile, (_August_). This species frequents the mountains of central Chile. When bivouacking one night on the Bell of Quillota, at an elevation of 6000 feet above the sea, I heard a gentle, plaintive cry, which I was told was made by this bird. It is regarded with superstitious dread by many of the lower orders. Mr. Gould observes, that “this species has a strong resemblance, at the first glance, with the _Caprimulgus Europæus_, but may be readily distinguished by its shorter wing, more lengthened tarsi, by a conspicuous white band across the base of the tail, and by all these feathers, except the two middle ones, having another white band near the tip.” Mr. Gould then adds, as “I am quite undecided to which of the sub-genera this and the following species should belong, I leave them for the present in the restricted genus, _Caprimulgus_, although I certainly perceive in it many points of affinity to the group which inhabits the United States of North America.” 2. CAPRIMULGUS PARVULUS. _Gould._ Caprimulgus parvulus, _Gould_, Proceedings of the Zoological Society, February 1837, p. 22. _C. capite intensè fusco, guttis minutis cinereis ornato; vittâ rufâ cervicem cingente; gutture scapularibusque ad marginem, secundariis ad apicem stramineis; pectore et abdomine lineis fuscis transversis; primariis nigrescentibus, tribus fasciis inæqualibus pallidè rufescentibus; caudâ fasciis pallidè fulvescentibus et fuscis ornatâ._ Long. tot. unc., 7½; _alæ_, 5; _caudæ_, 4; _tarsi_, ⅝. Crown of head gray, with black longitudinal streaks. Back of neck with a fulvous ring, which extends round the front beneath one of white, as in the _C. bifasciatus_. Back, dull gray. Interscapulars, with the central part of each feather, black, terminating in a point; the outer part of the web being broadly fringed with a very pale fulvous, the inner with gray. Wings: primaries brown, with fulvous marks, forming three irregular transverse bars, which are scarcely visible when the wing is closed. Tail and upper tail-coverts, dull coloured, very obscurely marked with transverse bars of gray and fulvous, of different degrees of darkness. _Under surface._—Throat white, edged with fulvous on lower side. Breast, belly, and under tail-coverts, fulvous, with numerous very narrow transverse bars of brown. The pale fulvous marks, forming interrupted bars, are more plainly seen on this than on the upper side of the tail.