Whip-poor-will is significantly smaller and grayer than Chuck-will’s-widow. Whip-poor-will's outer tail feathers have white tips that are visible when the tail is spread in flight. Chuck-will’s-widow has white only on the inner half of these feathers, so the tail appears much less white overall. Common Pauraque of South Texas also has prominent white on the outer tail feathers and white slashes in the wings. Common Nighthawk has white slashes on the wings in flight, and a white throat. They are gray overall, opposed to brown of Chuck-will’s-widow. When perched, nighthawks have a smaller head and often choose a more conspicuous perch.