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Douglas Harper's Etymology Dictionary
night-hawk

from 1610s in reference to various birds, from night + hawk (n.). Figurative sense of "one who stays up and is active at night" is from 1818.

Usage examples of "night-hawk".

Then it was the night-hawks that astonished him, those beautiful falcon-winged owl-colored birds, dashing after insects, beeping in a raspy, loud monotone.