Definition of "nightbird" [nightbird]

• Alternative spelling of night bird. (noun)

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• "More recently, Mayr et al. (2003) found Leptosomus to group with frogmouths in the 'nightbird' + apodiform clade, Ericson et al. (2006) found Leptosomus to be outside of a land bird clade that includes owls, mousebirds, 'core coraciiforms', trogons and piciforms (woodpeckers and kin), and Hackett et al. (2008) found Leptosomus to be close to (but outside of) a clade that includes trogons, piciforms and 'core coraciiforms'."
• "The only sounds here were the stirrings of plants, the occasional skreek of a nightbird, and the soft thudding steps of the horses."
• "Faint music came from another house beyond the trees; a carriage clopped past the distant gates; overhead a nightbird moaned dolefully; I could hear my own knees creaking as I crouched there, scratching the newly-healed bullet-wound in my backside and wondering what the deuce was wrong."