The Yellowface I budgerigar mutation is one of approximately 30 mutations affecting the colour of budgerigars.
Read more about Yellowface I Budgerigar Mutation: Contents, Appearance, Historical Notes, Genetics
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The Yellowface I budgerigar mutation is one of approximately 30 mutations affecting the colour of budgerigars.
Read more about Yellowface I Budgerigar Mutation: Contents, Appearance, Historical Notes, Genetics