The Amazon Basin is filled with parrots including 17 species of macaws. The biggest of all these wonderful birds is the hyacinth macaw. Also called the blue macaw, its body measures 3.3 feet long with a wingspan up to four feet. It weighs almost four pounds. They can live 50 to 60 years in the wild. This vulnerable bird’s favorite foods are seeds and nuts, especially the acrocomia aculeata nut, commonly called the macaw palm. This shell is hard to open with a hammer. Yet the hyacinth macaw’s strong beak shatters it with ease.