BioStor
 | Birds of the Santa Marta region of Colombia: A study in altitudinal distribution W E Clyde Todd and Melbourne Armstrong Carriker Jr. (1922) Annals of The Carnegie Museum 14: 1-582 |
 | Birds of the Cayo district, British Honduras (1929) Bulletin of The Museum of Comparative Zoology 69: 363-393 |
 | Die Vögel aus der altburdigalen Spaltenfüllung von Wintershof (West) bei Eichstätt in Bayern Peter Ballmann (1969) Zitteliana 1: 5-58 |