There are at least five different species in the nightjar family seen in Cuba. Among these, are the Eastern Whip-poor-will, Chuck-will's-widow, Cuban Nightjar, Common Nighthawk and the Antillean Nighthawk.
The nightjars can be identified by their calls which are different from one another. These calls usually start just before total darkness and carry on into the night. All nightjars are insect-eating birds and they catch most bugs on the fly.