de Kloet, RS; de Kloet SR (2005). "The evolution of the spindlin gene in birds: Sequence Examination of an intron from the spindlin W and Z gene reveals 4 big divisions of your Psittaciformes".
[64] They could use https://keziatipx947087.win-blog.com/10537423/5-essential-elements-for-parots