The site is centred on the lower Mangoky river, 30 km south of Manja. Hills and mountains alternate with more or less flat areas. The main rivers in the area are the Mangoky, Sakanavaka and Sakavoay. The vegetation is composed of dense, dry deciduous forest, degraded in parts, and the most common trees are baobabs Adansonia. Areas of savanna also occur, sometimes with scattered trees of Sclerocarya, Stereospermum, Celastrus, Tamarindus, and palms Bismarckia.
See Box and Tables 2 and 3 for key species. Sixty-one species are known from the site, of which 40 are endemic to Madagascar. Ankazoabo Forest holds of the species that are characteristic of spiny forest. A species of Monticola found in the Mangoky canyons is not certainly identified but could be Monticola bensoni. Species of global conservation concern include Tachybaptus pelzelnii, Ardeola idae, Lophotibis cristata, Accipiter madagascariensis and Accipiter henstii.
BirdLife International (2019) Important Bird Areas factsheet: Mangoky-Ankazoabo Complex NPA. Downloaded from http://www.birdlife.org on 13/12/2019.