**Acknowledgements**

I greatly appreciate the financial support of the following partners: SouthWild. com Conservation Travel System, ONF Brasil, Rainforest Biodiversity Group, Idea Wild, The Mamont Scholars Program of the Explorer's Club Exploration Fund, Cleveland Metroparks Zoo, and the Rufford Small Grants Foundation (18743-1, 23022-2 and 31091-B). I thank Marco Aurélio Crozariol and Vítor Piacentini for providing useful discussions about the species distribution, while Reginaldo Honorato and Raíssa Sepúlvida contributed with the mapping. Finally, I thank the hundreds of birdwatchers and wildlife photographers who took their personal time to contribute with popular science databases.
