Nightjars

Eastern Whip-poor-will song, normal delivery followed by a subdued version (June, NJ).











subdued








During interactions Whip-poor-wills make a Swainson's Thrush-like whip. Here a bird is singing when a second bird flies by calling and then begins rapidly singing (Apr, NJ).




Chuck-will's-widow at dusk, Dividing Creek, NJ (May).












Chuck-will's-widows have a number of calls (before sunrise, May, DE):
Heron-like quok calls by bird that was at least initially in flight.












Growls and clucking calls











Calls in a series












Common Nighthawk peent and "boom" where the bird dives and creates a sound with its primary wing feathers (dusk, May, NJ).










peent followed by boom











The American Woodcock call is similar to that of the nighthawk (dawn,Feb, NJ).