Dussex (1 Ocak 2015). "Evidence for Bergmann's Rule and Not Allopatric Subspeciation in the Threatened Kaka (Nestor meridionalis)". Journal of Heredity (İngilizce). 106 (6): 679-691. doi:10.1093/jhered/esv079. ISSN0022-1503. PMID26447214.
De Kloet (Eylül 2005). "The evolution of the spindlin gene in birds: sequence analysis of an intron of the spindlin W and Z gene reveals four major divisions of the Psittaciformes". Mol. Phylogenet. Evol. 36 (3): 706-21. doi:10.1016/j.ympev.2005.03.013. PMID16099384.
Schweizer (2009). "The evolutionary diversification of parrots supports a taxon pulse model with multiple trans-oceanic dispersal events and local radiations". Molecular Phylogenetics and Evolution. 54 (3): 984-94. doi:10.1016/j.ympev.2009.08.021. PMID19699808.
Dussex (1 Ocak 2015). "Evidence for Bergmann's Rule and Not Allopatric Subspeciation in the Threatened Kaka (Nestor meridionalis)". Journal of Heredity (İngilizce). 106 (6): 679-691. doi:10.1093/jhered/esv079. ISSN0022-1503. PMID26447214.
De Kloet (Eylül 2005). "The evolution of the spindlin gene in birds: sequence analysis of an intron of the spindlin W and Z gene reveals four major divisions of the Psittaciformes". Mol. Phylogenet. Evol. 36 (3): 706-21. doi:10.1016/j.ympev.2005.03.013. PMID16099384.
Schweizer (2009). "The evolutionary diversification of parrots supports a taxon pulse model with multiple trans-oceanic dispersal events and local radiations". Molecular Phylogenetics and Evolution. 54 (3): 984-94. doi:10.1016/j.ympev.2009.08.021. PMID19699808.
Dussex (1 Ocak 2015). "Evidence for Bergmann's Rule and Not Allopatric Subspeciation in the Threatened Kaka (Nestor meridionalis)". Journal of Heredity (İngilizce). 106 (6): 679-691. doi:10.1093/jhered/esv079. ISSN0022-1503. PMID26447214.