A manual of North American birds - Ridgway, Robert, 1850 -1929 (J. B. Lippincott, 1887)

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A manual of North American birds - Ridgway, Robert, 1850 -1929 (J.B. Lippincott, 1887)

Manual of the vertebrates of the northern United States, including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species - Jordan, David Starr, 1851 -1931 (Jansen, McClurg & Company, 1884)

Manual of the vertebrates of the northern United States, including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species - Jordan, David Starr, 1851 -1931 (Jansen, McClurg & company, 1880)

Manual of the vertebrates of the northern United States, including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species - Jordan, David Starr, 1851 -1931 (Jansen, McClurg, 1880)

Manual of the vertebrates of the northern United States, including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species. By David Starr Jordan ... - Jordan, David Starr, 1851 -1931 (Jansen, McClurg & company, 1880)

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Martini Vahlii, profess. botan. Haun. membr. societ. lit. plur. Enumeratio plantarum :vel ab aliis, vel, ab ipso observatum, cum earum differentiis specificis, synonymis selectis et descriptionibus succinctis - Vahl, M. (Martin), 1749 -1804 (Impenis auctoris, & prostat apud J.H. Schubothe, 1804)

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Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1959)

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Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1968)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1969)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1971)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1972)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1975)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1982)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1991)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1992)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1996)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 2015)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 1999)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 2001)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 2002)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 2003)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 2005)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 2006)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 2008)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1891)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1893)

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Michigan bird life, a list of all the bird species known to occur in the state together with an outline of their classification and an account of the life history of each species, wtih special reference to its relation to agriculture - Barrows, Walter Bradford, 1855 -1923 (Michigan Agricultural College, 1912)