de Kloet, RS; de Kloet SR (2005). "The evolution on the spindlin gene in birds: Sequence Investigation of the intron of the spindlin W and Z gene reveals 4 major divisions of your Psittaciformes". These parrots are https://dillannvib179684.worldblogged.com/36302375/a-simple-key-for-african-grey-parots-for-sale-unveiled