This report was done in collaboration with the Pulitzer Center.
Mario Cohn-Haft, an employee of Brazil's National Institute of Amazonian Research, holds a male white bellbird that he captured in Brazil's Roraima state for his research collection. The black stripe above the bill is a retractable wattle that sometimes dangles down from its head. (Courtesy of Daniel Grossman)Mario Cohn-Haft, an ornithologist at Brazil's National Institute of Amazonian Research, on a field trip a few hours northeast of Manaus, the Amazon's largest city. (Courtesy of Daniel Grossman)
