The following sounds are from acoustic censuses that I have been conducting at the Cristalino Jungle Lodge, which is located in the extreme northern section of the state of Mato Grosso in the southern Amazonian rainforest in Brazil. All recordings are in terra firme forest between 5:20am and 8:30am. Notes about each unidentified sound are in parenthesis. If you are able to identify any of the species responsible for these sounds please email me at dluther@email.unc.edu. Thank you.