The birds of North America
New York, U.S.A. :Published under the auspices of the Natural Science Association of America,1895, c1888.
biodiversitylibrary.org/page/41959063
Johann Andreas Naumann's ... Naturgeschichte der Vögel Deutschlands, nach einigen Erfahrungen entworfen. 13.T.Plates
Leipzig :G. Fleischer,1820-1860.
biodiversitylibrary.org/page/33755667
Osteologia avium, or, A sketch of the osteology of birds /.
[Wellington] :Published by R. Hobson, Wellington, Salop,1858-1875..
biodiversitylibrary.org/page/41399193
Osteologia avium, or, A sketch of the osteology of birds /.
[Wellington] :Published by R. Hobson, Wellington, Salop,1858-1875..
biodiversitylibrary.org/page/41399199