Conure poop changing colorsany vets out there

ok i have a almost 3 month old yellow sided conure. she asks very babyish and cuddles with me. this is my first conure, but not my first bird. sometimes her poop is redish brown and somtimes it is green? is that ok? my mom says it is natural because of the color of her food.(which is a mix of colored pellets, sunflower seed, and millet...also my mom doesn't know much about animals I research them non- stop though.) she also has fruit and yogurt. I read that if she has red or brown poop she may have poisoning or liver diesease.(sorry for the spelling) Can you tell me if this is really natural? I have had her for only 3 weeks and have bonded with her so of course i don't want her to die (plus she was 400 dollars so a waste of money for a dead bird that would be.)

Educate yourself. Subscribe to BirdTalk magazine and read it from front to back every month. Vets know little to nothing about birds

NO Yoghurt. What would the bird eat in the wild that would have milk products in it? Nothing. Her poop is okay. Depends what they eat. If she eats berries it will be red.

She needs fresh vegies. Chop celery, shred carrots, chop apples, kiwi fruit, bananas, red peppers, green peppers and offer that ONLY in the morning. Parrots do not eat seeds or pellets in the wild. Give her natural food. Also soak buckwheat, wheat berries, barley and wild rice mix in very warm water over night. Add this to the vegie mix. My birds love this. They get seeds for their second feeding in the afternoon. Be sure she has a cuttle bone for calcium. Also clip a leaf of Romain to the side of the cage. She will enjoy pecking at it and will get vitamin A that she needs to be healthy. While you are researching - google Nurturing Dominance and read everything Sally Blanchard writes.