NIGHT BIRD • E-FREE TRANSLATION.COM • Definition of Night bird

... burning wood grew stronger. It might not have been noticed by the dwellers in peaceful lands, but it was obvious at once to senses trained like theirs in the hardest of all schools, that of continuous danger. Henry twice heard the swish of a heavy night bird over their heads, but he knew the sound and paid no attention to it. Faint sliding noises in the thickets were made by the little animals, scuttling away in fright ...

— The Keepers of the Trail - A Story of the Great Woods • Joseph A. Altsheler