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  1. Cockatiel Mutations and Genetics
    Hey! I'm extremely new to this site so bear with me haha. I have a confirmed female cockatiel, a little older than a year. She has this pearling under her wings. Note that the entire underside of the wings (minus primary and secondary flight feathers) is covered in pearling. Does this mean she...
  2. Cockatiel Mutations and Genetics
    My pearl 's father is pied and her mother is lutino, so does she split to pied? And I think she has white halos next to her orange cheeks. Maybe she splits to whiteface too, or not? This is my pearl hen:
  3. Breeding and Genetics
    Lutino, pearl, cinnamon and sex-linked yellow cheek (SLYC) are sex-linked recessive genes that are passed from parent to offspring according to fairly complicated inheritance rules. With birds, the sex chromosomes are XX for males and XY for females, which is the opposite of the human pattern...
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