Robert Ridgway

Additions and corrections to the ...

Additions and corrections to the list of native trees of the lower Wabash

Year unknown

A manual of North American birds

Year unknown

A Manual of North American Birds

Year unknown

A memoir of Daniel Bontecou, 1851...

A memoir of Daniel Bontecou, 1851-1924

Year unknown Robert Ridgway and Eugene G. Haines

A nomenclature of colors for naturalists

Year unknown

A nomenclature of colors for natu...

A nomenclature of colors for naturalists, and compendium of useful knowledge for ornithologists

Year unknown

Bird papers, 1873-1920

Bird papers, 1873-1920

Year unknown

Catalogue of the aquatic and fish-eating birds exhibited by the United States National Museum

Year unknown

Catalogue of the birds ascertaine...

Catalogue of the birds ascertained to occur in Illinois

Year unknown

Catalogue of the birds ascertaine...

Catalogue of the birds ascertained to occur in Illinois

Year unknown

Catalogue of the ornithological c...

Catalogue of the ornithological collection in the museum of the Society

Year unknown

Check list of the birds of Illinois

Year unknown Benjamin T. Gault, Robert Ridgway, Arthur A. Allen, and Illinois Audubon Society

Color standards and color nomenclature

Year unknown

Correspondence

Correspondence

Year unknown

Description of some new species o...

Description of some new species of birds from Cozumel Island, Yucatan

Year unknown

Descriptions of seven new species...

Descriptions of seven new species and subspecies of birds from tropical America

Year unknown

Descriptions of several new speci...

Descriptions of several new species and geographical races of birds contained in the collection of the United States National museum

Year unknown

Destruction of crows during the r...

Destruction of crows during the recent cold spell

Year unknown

Diagnoses of some new genera of b...

Diagnoses of some new genera of birds

Year unknown

Directions for collecting birds

Directions for collecting birds

Year unknown

Forest views

Forest views

Year unknown

List of birds

List of birds

Year unknown

Monograph of the genus Leucostict...

Monograph of the genus Leucosticte, Swainson

Year unknown

Nomenclature of North American birds chiefly contained in the United States National Museum

Year unknown

Notes on birds observed at Mount ...

Notes on birds observed at Mount Carmel Southern Illinois in the Spring of 1878

Year unknown

Notes on the bird fauna of the Sa...

Notes on the bird fauna of the Salt Lake Valley and the adjacent portion of the Wahsatch mountains

Year unknown

Notes on the vegetation of the lo...

Notes on the vegetation of the lower Wabash valley

Year unknown

Notes on the vegetation of the lo...

Notes on the vegetation of the lower Wabash Valley

Year unknown

Notes upon American water birds

Notes upon American water birds

Year unknown

On a collection of birds made by Messrs. J. E. Benedict and W. Nye of the United States Fish commission steamer "Albatross."

Year unknown

On a new humming bird (Atthis ell...

On a new humming bird (Atthis ellioti) from Guatemala

Year unknown

On Nisus Cooperi (Bonaparte), and...

On Nisus Cooperi (Bonaparte), and N. Gundlachi (Lawrence)

Year unknown

On some new forms of American birds

On some new forms of American birds

Year unknown

On the Buteonine subgenus Craxire...

On the Buteonine subgenus Craxirex, Gould

Year unknown

Ornithology

Year unknown

Ornithology

Year unknown

Ornithology of Guadeloupe Island,...

Ornithology of Guadeloupe Island, based on notes and collections made by Edward Palmer

Year unknown

Outlines of a natural arrangement of the Falconidae

Year unknown

Outlines of a natural arrangement...

Outlines of a natural arrangement of the Falconidæ

Year unknown

Studies of the American Falconidae

Studies of the American Falconidae

Year unknown

Studies of the American Herodiones

Studies of the American Herodiones

Year unknown Robert Ridgway and Geological and Geographical Survey of the Territories (U.S.)

The birds of Colorado

The birds of Colorado

Year unknown

The birds of North and middle America

Year unknown

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

Year unknown

The humming birds

Year unknown

The ornithology of Illinois

Year unknown

The ornithology of Illinois

The ornithology of Illinois

Year unknown

The prairie birds of southern Ill...

The prairie birds of southern Illinois

Year unknown

The prairie birds of Southern Ill...

The prairie birds of Southern Illinois

Year unknown

The relation between the color an...

The relation between the color and the geographical distribution of birds

Year unknown

United States geological explorat...

United States geological exploration of the fortieth parallel, Clarence King, geologist-in-charge

Year unknown Clarence King, F. B. Meek, Hall, James, R. P. Whitfield, and Robert Ridgway

Vergleichende Farbtabellen, Ridgw...

Vergleichende Farbtabellen, Ridgway - Ostwald, Ostwald - Ridgway

Year unknown Klaus Zimmermann, Robert Ridgway, and Wilhelm Ostwald