The Bolivian montane dry forests ecoregion in Bolivia, on the eastern side of the Andes, is a transitional habitat between the puna grasslands higher up to the west and the Chaco scrub to the east. This dry region is characterized by steep hillsides, cliffs and valleys.
This dry region is characterized by steep hillsides, cliffs and valleys. These dry forests flank the slopes and valleys of the eastern Andes of Bolivia – extending as both large and small patches among valleys and between the high puna habitats and the lowland chaco.
This region has very diverse microclimates, and species assemblages can differ from one mountain or valley to the next.
A variety of endemic birds are present in this region, including Bolivian Recurvebill (Simoxenops striatus), Bolivian Blackbird (Oreopsar bolivianus), and a number of finches including Citron-headed Yellow Finch (Sicalis luteocephala) and Warbling Finches (Poospiza garleppi and P. boliviana).
Other rare and endemic species include the Torrent Duck (Merganetta armatta), Wedge-tailed Hillstar (Oreotrochilus adela), Black-hooded Sunbeam (Aglaeactis pamela), and Carbonated Flower-piercer (Diglossa carboniaria).
A number of national parks protect a significant area of habitat, however more are needed in order to preserve this region heavily affected by urban expansion.