BioStor
 | A catalogue of the birds of North America Robert Ridgway (1880) Proceedings of The United States National Museum 3: 163-246 |
 | On the Vertical Range of Birds in Colorado Frank M Drew (1885) The Auk 2: 11-18 |
 | On the Avi-Fauna of Pinal County, with Remarks on Some Birds of Pima and Gila Counties, Arizona (Concluded) J A Allen (1888) The Auk 5: 159-168 |
 | Notes on the Birds of Fort Klamath, Oregon (Concluded) J C Merrill and William Brewster (1888) The Auk 5: 357-366 |
 | Observations on the Avifauna of Portions of Arizona Edgar A Mearns (1890) The Auk 7: 45-55 |
 | The Young of the Red-Shouldered Hawk (Buteo lineatus) (1894) The Auk 11: 270-280 |
 | A List of the Birds of the wet Mountains, Huerfano County, Colorado Willoughby P Lowe (1894) The Auk 11: 266-270 |
 | Some Additional New Mexican Birds (1899) The Auk 16: 188-189 |
 | Notes from Rhode Island Howe Reginald Heber (1899) The Auk 16: 189-190 |
 | Campbell's Nests and Eggs of Australian Birds (1902) The Auk 19: 301-302 |
 | Some Notes from Western Texas Harry C Oberholser (1902) The Auk 19: 300-301 |
 | A Synopsis of the Genus Psaltriparus Harry C Oberholser (1903) The Auk 20: 198-201 |
 | Additions to Mitchell's List of the Summer Birds of San Miguel County, New Mexico Florence Merriam Bailey (1904) The Auk 21: 443-449 |
 | A Preliminary List of the Birds of Leon County, Florida (1904) The Auk 21: 449-462 |
 | Additional Notes on the Birds of the Upper Pecos Florence Merriam Bailey (1904) The Auk 21: 349-363 |
 | Summer Resident Birds of Brewster County, Texas (1905) The Auk 22: 12-15 |
 | Breeding birds of the Sierra de Antonez, north central Sonora J E Thayer and O Bangs (1906) Proceedings of The Biological Society of Washington 19: 17-22 |
 | Concerning the Thick-Billed Parrot W H Bergtold (1906) The Auk 23: 425-428 |
 | Notes on Birds of Silver City, New Mexico (1906) The Auk 23: 418-425 |
 | The Birds of Wyoming: Some Corrections Wells W Cooke (1906) The Auk 23: 464-465 |
 | Further Notes from Extreme Southern Illinois John F Ferry (1907) The Auk 24: 430-492 |
 | Birds of the Region about Needles, California N Hollister (1908) The Auk 25: 455-462 |
 | New Records and Important Range Extensions of Colorado Birds Merritt Cary (1909) The Auk 26: 180-185 |
 | The Birds of Colorado: Third Supplement Wells W Cooke (1909) The Auk 26: 400-422 |
 | Bird Notes from Salida, Chaffee County, Colorado John W Frey and Edward R Warren (1910) The Auk 27: 142-151 |
 | The Status of Lloyd's Bush-Tit as a Bird of Arizona H S Swarth (1913) The Auk 30: 399-401 |
 | The California Forms of the Genus Psaltriparus Harry S Swarth (1914) The Auk 31: 499-526 |
 | Life-zone indicators in California Harvey Monroe Hall and Joseph Grinnell (1919) Proceedings of the California Academy of Sciences 9: 37-67 |
 | Observations upon the bird life of Death Valley Joseph Grinnell (1923) Proceedings of the California Academy of Sciences 13: 43-109 |
 | The birds and mammals of Modoc County, California Joseph Mailliard (1927) Proceedings of the California Academy of Sciences 16: 261-359 |
 | The faunal areas of southern Arizona: a study in animal distribution Harry S Swarth (1929) Proceedings of the California Academy of Sciences 18: 267-383 |