de Kloet, RS; de Kloet SR (2005). "The evolution of your spindlin gene in birds: Sequence analysis of an intron on the spindlin W and Z gene reveals 4 main divisions in the Psittaciformes". With about 400 one of a kind https://isaiahcgqy082119.bloggactivo.com/29895156/top-guidelines-of-cockatoos-parrots-for-sale