Toy sizing recommendations (you can go up or down a size for aggressive and timid chewers): Extra Small Toys Cockatiels, small conures, hahn's macaw, budgie, lovebirds, parrotlets, etc. Small Toys All conures, caiques, indian ringneck's, meyers, pionus, senegal, kakarki, etc. Medium Toys African greys, small amazons, eclectus, small cockatoos (goffin), mini macaws. Large Toys Medium sized macaws (blue & gold, military, etc.), large amazons, medium cockatoos (umbrella, etc.). Extra Large Toys Large macaws (greenwing, etc.), large cockatoos (moluccan).