A Manual of North American BirdsRobert Ridgway · First published 1887 · Latest edition 1896Open the Tome
On a collection of birds made by Messrs. J. E. Benedict and W. Nye of the United States Fish commission steamer "Albatross."Robert Ridgway · First published 1884Open the Tome
On Nisus Cooperi (Bonaparte), and N. Gundlachi (Lawrence)Robert Ridgway · First published 1875Open the Tome
Outlines of a natural arrangement of the FalconidaeRobert Ridgway · First published 1875Open the Tome
Catalogue of the ornithological collection in the museum of the SocietyRobert Ridgway · First published 1873Open the Tome
The relation between the color and the geographical distribution of birdsRobert Ridgway · First published 1873Open the Tome
