1878

• Ridgway, R. 1878. Descriptions of two new species of Birds from Costa Rica, and notes on other rare species from that country. Proceedings of United States National Museum. Vol.1 no.39: 252–255. Government Printing Office. Washington [1879]. BHLReference page. 

1886

• Ridgway, R. 1886. Description of an apparently new species of Picolaptes from the lower Amazon. Proceedings of United States National Museum. Vol.9 no.591: 523. Government Printing Office. Washington [1887]. Original description BHLReference page. 

1887

• Ridgway, R. 1887. Description of a new species of Cotinga from the Pacific coast of Costa Rica. Proceedings of United States National Museum. Vol.10 no. 599: 1–2. Government Printing Office. Washington [1888]. Original description BHL Tail illustration pl.6, fig.3 BHLReference page. 

• Ridgway, R. 1887. Description of a new genus of Dendrocolaptine bird from the lower Amazon. Proceedings of United States National Museum. Vol.10 no.618: 151. Government Printing Office [1888]. Washington. BHLReference page. 

• Ridgway, R. 1887. Description of a new species of Phacellodomus from Venezuela. Proceedings of United States National Museum. Vol.10: 152. Government Printing Office. Washington. BHLReference page. 

• Ridgway, R. 1887. Description of a new Muscisaxicola from Lake Titicaca, Peru. Proceedings of United States National Museum. Vol.10 no. 644: 430. Government Printing Office. Washington. BHL Reference page. 

• Ridgway, R. 1887. Descriptions of new species and genera of birds from de lower Amazon. Proceedings of United States National Museum. Vol.10 no. 660: 516-528. Government Printing Office. Washington [1888]. BHL Reference page. 

1889

• Ridgway, R. 1889. Scientific results of explorations by the US Fish Comission Steamer Albatross. No. 1. Birds collected on the Galapagos Islands. Proceedings of the United States National Museum. Vol. 12, p. 101–128. Government Printing Office. Washington [1890]. BHL Reference page. 

1891

• Ridgway, R. 1891. Notes on Pachyrhamphus albinucha, Burmeister. Proceedings of the United States National Museum. Vol.14 no.870: 479-480. Government Printing Office. Washington. BHL. DOI: 10.5479/si.00963801.870.479 . Reference page. 

1898

• Ridgway, R. 1898. Descriptions of Supposed New Genera, Species, and Subspecies of American Birds. I. Fringillidæ. The Auk 15(3): 223–230. BHL DOI: 10.2307/4068377 . Reference page. 

1901

• Ridgway, R. 1901. The birds of North and Middle America: a descriptive catalogue of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean sea, and the Galapagos Archipelago. Part I. Family Fringillidæ–the finches. Bulletin of the United States National Museum 50(1): i-715. BHL DOI: 10.5962/bhl.title.54021 Reference page. 

1905

• Ridgway, R. 1905. Descriptions of some new genera of Tyrannidae, Pipridae, and Cotingidae. Proceedings of the Biological Society of Washington. Vol.18: 207-210. Washington. BHL Reference page. 

1906

• Ridgway, R. 1906. Some observations concerning the American families of Oligomyodian passeres. Proceedings of the Biological Society of Washington. Vol.19: 7-16. Washington. BHL Reference page. 

1909

• Ridgway, R. 1909. New genera, species and subspecies of Formicariidae, Furnariidae, and Dendrocolaptidae. Proceedings of the Biological Society of Washington. Vol.22: 69-74. Washington. BHL Reference page. 

1915

• Ridgway, R. 1915. Descriptions of some new forms of American cuckoos, parrots, and pigeons. Proceedings of the Biological Society of Washington 28: 105–108. BHL Reference page.