Brown, L (1972). “The Breeding Behaviour of the African Harrier Hawk Polyboroides typus”. 《Ostrich》 43 (3): 169–175. doi:10.1080/00306525.1972.9632596.
Rodrigues, P; Mirinha, M; Palma, L (2020). “Diurnal raptors of West Africa woodland-farmland mosaics: Data from walking-transects in eastern Guinea-Bissau”. 《Avian Biology Research》 13 (1-2): 18–23. doi:10.1177/1758155920901424.
McPherson, S. C.; Sumasgutner, P; Downs, C. T. (2021). “South African raptors in urban landscapes: a review”. 《Ostrich》 92 (1): 41–57. doi:10.2989/00306525.2021.1900942.