Alec Earnshaw is an animal lover & photographer who has created this huge gallery of photographs of the birds, mammals, reptiles, amphibians, & insects of Argentina. He also is available to give guided bird walks in & around Buenos Aires.
If you are planning to be at La Estancia for the October event, there is a northwest Argentina birding tour starting on October 23rd in Buenos Aires that continues on the 24th in Tucuman. Anyone interested in signing up? Here's a Glittering-bellied Emerald hummingbird (Chlorostilbon aureoventris):