Pfeiffer, M. B.; Venter, J. A.; Downs, C. T. (2017). "Cliff characteristics, neighbour requirements and breeding success of the colonial Cape Vulture Gyps coprotheres". Ibis. 159 (1): 26–37. doi:10.1111/ibi.12428.
Martens, Francis R.; Pfeiffer, Morgan B.; Downs, Colleen T.; Venter, Jan A. (2020). "Cliff roost site selection of the endangered Cape Vulture Gyps coprotheres in the Eastern Cape province, South Africa". Ostrich. 91: 25–34. doi:10.2989/00306525.2019.1651417. S2CID213520327.
Hirschauer, Margaret T.; Wolter, Kerri; Neser, Walter (2017). "Natal philopatry in young Cape Vultures Gyps coprotheres". Ostrich. 88: 79–82. doi:10.2989/00306525.2017.1245683. S2CID90660388.
Thompson, Lindy J.; Blackmore, Andrew C. (2020). "A brief review of the legal protection of vultures in South Africa". Ostrich. 91: 1–12. doi:10.2989/00306525.2019.1674938. S2CID216215669.
Martens, Francis R.; Pfeiffer, Morgan B.; Downs, Colleen T.; Venter, Jan A. (2020). "Cliff roost site selection of the endangered Cape Vulture Gyps coprotheres in the Eastern Cape province, South Africa". Ostrich. 91: 25–34. doi:10.2989/00306525.2019.1651417. S2CID213520327.
Hirschauer, Margaret T.; Wolter, Kerri; Neser, Walter (2017). "Natal philopatry in young Cape Vultures Gyps coprotheres". Ostrich. 88: 79–82. doi:10.2989/00306525.2017.1245683. S2CID90660388.
Thompson, Lindy J.; Blackmore, Andrew C. (2020). "A brief review of the legal protection of vultures in South Africa". Ostrich. 91: 1–12. doi:10.2989/00306525.2019.1674938. S2CID216215669.