nightjar
NITE-jar
A nocturnal bird with a wide, gaping mouth built for catching insects in flight — cryptically patterned, nearly invisible on the ground, and named for its jarring, churring call that carries through warm summer nights. Nightjars hunt at dusk and dawn, filling the ecological niche between the swallows and the owls.
Etymology
English compound: night + jar (to make a harsh, grating sound). The name dates to the 1620s. Also called a goatsucker, from the ancient and false belief that the birds nursed from goats at night.
*
Surprise Me With a Word