Biodiversity Heritage Library
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By "Warren, Benjamin Harry, 1858-1926"
Birds of Pennsylvania. Provisional list, including natives, permanent residents, winter residents, spring and fall migrants, occasional visitants and "stragglers" or accidental visitants.
By: Warren, Benjamin Harry,
Publication info: [n.d.]
Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Diseases and enemies of poultry / by Leonard Pearson and B.H. Warren.
By: Pearson, Leonard, - Warren, Benjamin Harry,
Publication info: [Harrisburg, Pa.] :C.M. Busch,1897.
Holding Institution: University of California Libraries (archive.org)
Report on the birds of Pennsylvania; with special reference to the food habits, based on over four thousand stomach examinations,
By: Pennsylvania. Ornithologist. - Warren, Benjamin Harry,
Edition: 2d ed., rev. and augm.
Publication info: Harrisburg,E.K. Meyers, State Printer,1890.
Holding Institution: Smithsonian Libraries