Lesser NighthawkChordeiles acutipennis
8-9" (20-23 cm). Similar to Common Nighthawk but smaller, with white wing patch (buff in female) nearer tip of wing (visible in flight). Both sexes have buffy cast to underparts. Male's throat white; female's buffy. Whereas Common Nighthawk hunts and calls from high up, Lesser Nighthawk flies low and utters no loud aerial calls.