Order Caprimulgiformes Ridgway, 1881 - nightjars 1 Suborder Caprimulgi Ridgway, 1881 - goatsuckers 2 Suborder Podargi Sharpe - frogmouths and potoos see Infraorder Podargides 3 Suborder Steatornithes Sharpe - oil-birds see Parvorder Steatornithida