For the healthiest bird diets, provide different sources of calcium from early spring through late summer. Providing an antler for the birds to peck, either in a tray or platform feeder or elsewhere in your yard. Nekton-Bio is a protein-enriched food supplement. Why should I consider supplements for my parrots and pet birds? African Grey Parrots in particular need higher amounts of calcium and Vitamin A in their diet. Morning Bird Feather-Glo Organic Dende Palm Oil Supplement Red Palm Oil For Pet Birds & Parrots - Similar to Avitech AviGlo. Make sure to check out all that we have to offer your pet birds and parrots in our wide selection of pet bird vitamins, parrot vitamins and supplements, multivitamins for pet birds and parrots, liquid vitamins, calcium supplements, mineral blocks for birds and more.