The birds of North America
New York :Published under the auspices of the Natural Science Association of America,1903.
biodiversitylibrary.org/page/35159463
Osteologia avium, or, A sketch of the osteology of birds /.
[Wellington] :Published by R. Hobson, Wellington, Salop,1858-1875..
biodiversitylibrary.org/page/41399215