Assertion: nightjar's song | /r/CapableOf | hear the{41songster
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text: When it rests, it is on a house-roof, a railing, or dead branch, and often when thus seated it sings a very sweet, simple little song, loud enough to puzzle the passer-by, who can hear but not see the{41} songster, and pretty enough to astonish those who imagine that swallows only twitter.