OIL-BIRDS, FROGMOUTHS 
AND WHIP-POOR-WILLS 
The crow-like night-flying oil-birds of South America, the curious frog- 
mouths or mopokes of India and Australia, the potoos and owlet-frog- 
mouths of the Old World tropics, together with the insect-hunting nightjars, 
night-hawks and whip-poor-wills, which are cosmopolitan except in the 
eastern reaches of the Pacific Ocean, form a compact order of birds. 
The nightjars or goatsuckers, according to ancient legends, were be¬ 
lieved to suck the milk of goats, but modern observations do not confirm 
these legends. The food of these night-flying birds consists chiefly of moths 
and cockchafers, which they catch on the wing. 
Related to the nightjars are the night-hawks, which lay their eggs on 
level ground or flat roof tops, and the whip-poor-wills. 
Oil-Birds: Oil-Bird. 
Frogmouths: Frogmouth. 
W hip-poor-wills: Whip-poor-will. 
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