425-600g birds. Example: Congo Grey, Umbrella Cockatoo, Eclectus, big Amazons

15 cm

110-190g birds. Example: Hahn´s macaw, Quakers, Senegals, Caique

600-1000g birds. Example: Blue and Gold Macaw, Moluccan Cockatoo, Scarlet Macaw

1000g-1600g birds. Example: Green-winged Macaw, Hyacinth Macaw