Groombridge, Jim J.; Jones, Carl; Bayes, Michelle K.; van Zyl, Anthony J.; Carrillo, José; Nichols, Richard A.; Bruford, Michael W. A molecular phylogeny of African kestrels with reference to divergence across the Indian Ocean. Molecular Phylogenetics and Evolution. 2002, 25 (2): 267–277. PMID 12414309. doi:10.1016/S1055-7903(02)00254-3.
Groombridge, Jim J.; Jones, Carl; Bayes, Michelle K.; van Zyl, Anthony J.; Carrillo, José; Nichols, Richard A.; Bruford, Michael W. A molecular phylogeny of African kestrels with reference to divergence across the Indian Ocean. Molecular Phylogenetics and Evolution. 2002, 25 (2): 267–277. PMID 12414309. doi:10.1016/S1055-7903(02)00254-3.