Kiwi is healthy, I asked this question in regards to my cockatiel Brave Heart. Recently, I noticed that she was unbalanced. I took her to the vet who took an x-ray and found that she has a dislocated wing. I realiZe that this is likely the cause of the valence issue. But I just wonder if she hurt her wing because she fell due to some other issue. I asked my vet to look into it, and he wondered if it might be a selenium deficiency. I feed Roudybush pellets with a little seed from Things for Wings online. They also get broccoli, pease, a little corn, quinoa, rice, carrots, and some berries in a chop mix dusted with Prime vitamin. I should also mention that she tends to lay a clutch every 2-3 months. I also provide cuttle bone. I should also mention that they are very picky and don't usually finish their veggies. My vet wants me to use a water soluble vitamin, but I worry about it becoming nullified by the sun