Brouwer (1993), Brouwer and Mullié (1993), Jameson and Crisler (1996), Koster and Grettenberger (1983), Newby et al. (1982), Shul et al. (1986).
Further resources
Recommended citation
BirdLife International (2017) Important Bird Areas factsheet: 'W' National Park. Downloaded from
http://www.birdlife.org on 20/10/2017.
