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keratin sheath

  1. Keratin Sheath problems

    Your Cockatiels Health
    Keratin Sheath problems please read...help! My cockatiel is around 15 years old. She became a chronic egg layer so I put her in a darker environment. Now her feathers are covered with a thick keratin sheath that will not come off. They are like long tubes covering her feathers. Even her...
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