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In 1,000 years the rainforest will have fewer trees and more grass so that it is more like a farm. Because the grass is lighter colors than leaves, the Scarlet Macaw will have less color on its feathers. It also will have weaker feet because it will not need to hold onto branches. It will eat more seeds from grass and less nuts from trees, so its beak will be less curved. It also will not have as strong a tail and smaller eyes.