The sight of the Night Jars is very keen, their hearing tolerably well developed, and their temperament by no means so sluggish as those who only see them drowsily perched among the branches during the day are usually inclined to suppose. They make no nest, and are content to deposit their eggs upon the naked ground, without even such scant preparation as the hollowing out of a slight cavity in which they might be more securely placed. Audubon tells us that it is not uncommon for the female, when disturbed, to conceal an egg in her mouth, and hurry with it to a spot where she can brood upon it unobserved. The young (usually not more than one or two in number) are tended and provided for with great care. Despite the important services rendered by this family, its members are in most countries regarded with unaccountable disfavour. One idea prevalent among the peasantry in some parts of Europe is so absurd that we cannot refrain from mentioning it; we allude to the idea that some species of Night Jars employ their huge jaws in relieving the goats of their milk--a superstition from whence is derived their usual name of Goatsuckers, an appellation conferred upon them from the most remote antiquity. THE NACUNDA. The NACUNDA (_Podager nacunda_) has obtained its name from the unusual size of its mouth, and may be regarded as the type of a South American group, distinguished by their powerful body, very broad head, strong beak, and thick plumage; their beak curves slightly downwards at its tip, and the mouth is surrounded by a growth of very stiff, short bristles; the nostrils are situated immediately above the upper mandibles. The wings, in which the second and third quills exceed the rest in length, are long and pointed; the short tail is composed of broad feathers and slightly rounded at its tip. The legs are powerful, the tarsi long and bare, the toes fleshy, and the nail of the middle toe serrated. The plumage of the Nacunda on the upper part of the body is blackish brown, marked with fine reddish yellow lines; the head is darker than the middle of the back, and the region of the shoulder indicated by large blackish brown spots. The tail-feathers exhibit six or eight dark lines, those of the male being edged with white. The throat, cheek-stripes, and region of the ear are reddish yellow, and slightly spotted; the belly, legs, lower tail-covers, and a line which passes from ear to ear around the throat are of a pure white; the breast is marked with undulating lines. The very large eyes are light brown; the beak greyish brown, tipped with black; the feet flesh-red, shaded with brownish grey. According to the Prince von Wied, this species is about ten inches long and twenty-seven broad; the wing measures eight inches and a quarter, and the tail two inches and two-thirds. These birds are principally found upon the vast savannahs of South America, where they usually frequent such parts as are covered