Nystalus

Nystalus is a genus of puffbird in the Bucconidae family. It contains the following species :
 * White-eared Puffbird (Nystalus chacuru)
 * Spot-backed Puffbird (Nystalus maculatus)
 * Caatinga Puffbird (Nystalus (maculatus) maculatus)
 * Chaco Puffbird (Nystalus (maculatus) striatipectus)
 * Barred Puffbird (Nystalus radiatus)
 * Striolated Puffbird (Nystalus striolatus)