Nightjars ' a beautiful and charismatic group, popular with birders around the world. Some species have developed spectacular tails and wing adornments, but the majority are fairly uniform in appearance, making their identification a stern test.

This new book in the Helm Identification Guides series focuses on these birds along with the frogmouths, potoos, owlet-nightjars and Oilbird, bringing the world of the nightjar out of the dark and into the spotlight.

Detailed text by the world's leading expert, Nigel Cleere, is accompanied by around 400 photos, covering as much subspecific, sexual and age-related variation as possible, with detailed maps, and 36 plates depicting feather-by-feather detail of every species.

A worthy successor to Cleere's 2000 book Nightjars: A Guide to Nightjars and related birds in the same series, this new edition will remain the definitive work on these remarkable birds for decades to come.