From Field and Study

Autor: Edmund J. Sawyer, James A. Calder, Robert Ridgway, Roland Case Ross, James Moffitt, H. N. Henderson, Austin Smith, James L. Ortega, Joseph W. Sefton, Charles Piper Smith, Stanley G. Jewett, Alfred M. Bailey, A. J. van Rossem

Publikováno v: The Condor. 28:238-246

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::78e22422ababd7f6dd0781ca17f20594
https://doi.org/10.2307/1363119

Land birds of northern New York : a pocket guide to common land birds of the St. Lawrence Valley and the lowlands in general of northern New York / by Edmund J. Sawyer ; illustrated by the author

Autor: Edmund J. Sawyer

Publikováno v: Land birds of northern New York : a pocket guide to common land birds of the St. Lawrence Valley and the lowlands in general of northern New York / by Edmund J. Sawyer ; illustrated by the author.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::623dc4b553f9a316d5c7ade394d0e9b2
https://doi.org/10.5962/bhl.title.14577

Chapman's 'What Bird Is That?' What Bird Is That? A Pocket Museum of the Land Birds of the Eastern United States Arranged according to Season Frank M. Chapman Edmund J. Sawyer

Autor: Frank M. Chapman, Edmund J Sawyer

Publikováno v: The Auk. 37:473-474

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b1b969dc061ff7d2dd7d44d3626d192
https://doi.org/10.2307/4073309

Bird Houses, Baths and Feeding Shelters

Autor: Edmund J. Sawyer, Donald S. Farner

Publikováno v: Bird-Banding. 14:93

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::139cd876b27fe1860473d3cb3354fa81
https://doi.org/10.2307/4509793

Bird Houses/Baths and Feeding Shelters/How to Make and/Where to Place Them

Autor: E. Alexander Bergstrom, Edmund J. Sawyer

Publikováno v: Bird-Banding. 27:103

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2176aa2b9e1c57afe7bc5b1f1646981d
https://doi.org/10.2307/4510574