I purchased this for all the different birds we have. Some need to bring out the color; some need to help their feather growth and that way their feather color will come out. Two Silver Bills are in the process of growing back feathers from molting. I gave them some. Hopefully it will help them faster get their feathers back (they are very small) and their beautiful feathers will show. It shows that it can be used for different purposes. Ill see which is the best.