What type of food does the hen eat; will it have favourite treats? Has the chook been into a veterinarian? If you're purchasing a young chook, ensure it is actually completely feathered and absolutely weaned (doesn't must be syringe fed or mother or father fed). Indications of a healthy fowl https://birdparadiseaviary.com/product-category/birds-for-sale/cockatiels-for-sale/