The Maranon Valley is a region of dry lowland habitats and cultivated areas. It features numerous endemics shared with neighboring Peru, many of which cannot be found elsewhere in Ecuador. Notable species include the Peruvian Pigeon, Maranon Spinetail, Maranon Slaty-Antshrike, Maranon Crescent-chest, Maranon Thrush, and Buff-bellied Tanager, none of which are found elsewhere in Ecuador.
