Newton and Newton (1993), Schulz and Schulz (1992), Symens (1989). Also monthly, quarterly and annual reports are available at the National Wildlife Research Center (Taif) and the National Commission for Wildlife Conservation and Development (Riyadh).
BirdLife International (2021) Important Bird Areas factsheet: National Wildlife Research Center and environs, Taif. Downloaded from
http://www.birdlife.org on 21/09/2021.