In ancient Peru, A parrot trade that crossed the Andes

In ancient Peru, A parrot trade that crossed the Andes

About 15 years ago, George Olah, -a conservation ecologist at the Australian National University, was conducting research in the Amazon, dangling from the rainforest canopy and collecting blood and feather samples from macaws for his doctoral thesis. Between field seasons, he often explored the archaeological sites along the coast of northern Peru, where the climate was dry and unforested.