BioStor
 | Proceedings of Learned Societies (1847) Annals And Magazine of Natural History 20: 55-70 |
 | Zoological Society (1857) Annals And Magazine of Natural History 20: 57-70 |
 | February 13, 1866 John Gould (1866) Proceedings of The Zoological Society of London 1866: 79-104 |
 | Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History. 5. Tyrannidae Charles B Hellmayer (1927) Publication. Field Museum of Natural History. Zoological series 13(5): 1-523 |