Rainbow Cliffs: Why Parrots in the Amazon Eat Clay

Our world holds a whole host of glorious natural spectacles, from great starling murmurations to the ethereal display of coral reef spawning. But to me, none is more thrilling than catching a glimpse of the majestic macaw. Screeching their way through the Amazon rainforest, leaving scattered fruit, broken branches, and a considerable quantity of parrot poop in their wake, parrots are simply animals like no other. But high in the treetops, flying far above the dense, dark foliage below, how can you ensure that you see their bright colours?