The birds of the Republic of Panamá. Part 1. Tinamidae (Tinamous) to Runchopidae (Skimmers)v. 150Smithsonian Institution
Wetmore, Alexander. 1965. The birds of the Republic of Panamá. Part 1. Tinamidae (Tinamous) to Runchopidae (Skimmers). Washington DC: Smithsonian Institution. In Smithsonian Miscellaneous Collection.