High performance Tropican food sticks are great for all parrots as breeding Food, birds needing higher proteins, birds needing extra nutrition during illness, molting during winter, and good for weaning. Tropican High Perfrm Sticks 33lb 15kg. The 34-inch sticks are the perfect size for amazons, greys, eclectus, cockatoos, macaws or any bird that likes to hold their food while they eat. Scientifically formulated as completely balanced extruded granule, containing eight grains and nuts for maximum palatability. Best food for growth and maintenance of all large birds. Age range description All Life Stages.