Engoulevent terne vs Engoulevent de Bates

The most reliable field mark to distinguish between the Plain Nightjar and Bates's Nightjar is their habitat preference. Plain Nightjar is typically found in open habitats, while Bates's Nightjar prefers dense forests. Both species are similar in structure and plumage, making habitat a key factor in identification.

Focus on the habitat where the bird is observed: open areas suggest Plain Nightjar, while dense forests indicate Bates's Nightjar.

Plain Nightjar is usually found in open habitats such as savannas and grasslands. In contrast, Bates's Nightjar is more often associated with dense forest environments.