List of the birds of Nelson County - Beckham, Charles Wickliffe. (John D. Woods, 1885)

A list of the birds of New Hampshire - Allen, Glover M. (Glover Morrill), 1879 -1942 (Nature Study press, 1903)

A list of the birds of New Hampshire - Allen, Glover M. (Glover Morrill), 1879 -1942 (Nature press, 1903)

List of the vertebrated animals living in the gardens of the Zoological Society of London - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society, 1862)

List of the vertebrated animals now or lately living in the gardens of the Zoological society of London - Sclater, Philip Lutley, 1829 -1913 (The Society, 1877)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society, 1879)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Zoological Society of London. (Printed for the Society, and sold ... Longmans, Green, Reader, and Dyer, 1883)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society by Longmans, Green, Reader, and Dyer, 1883)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Zoological Society of London. (printed for the Society, 1883)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Zoological Society of London. (Printed for the Society, 1896)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society, 1896)

List of vertebrated animals living in the gardens of the Zoological Society of London - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society, 1866)

List of vertebrated animals living in the gardens of the Zoological Society of London - London Zoo (London, England) (The Society, 1865)

Little brothers of the air - Miller, Harriet Mann, 1831 -1918 (Houghton, 1893)

Little brothers of the air - Miller, Harriet Mann, 1831 -1918 (Houghton, Mifflin & co, 1893)

Little brothers of the air - Miller, Harriet Mann, 1831 -1918 (Houghton, Mifflin and Company, 1892)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1965)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1969)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1971)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1972)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1973)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1975)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1978)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1979)

Local distribution and ecology of the birds of southern Illinois - Gross, Alfred O. (Alfred Otto), 1883 -1970 (1908)

Locusts and wild honey - Burroughs, John, 1837 -1921 (Houghton, Mifflin, 1901)

Locusts and wild honey - Burroughs, John, 1837 -1921 (Houghton Mifflin, 1921)

Locusts and wild honey - Burroughs, John, 1837 -1921 (Houghton Mifflin, 1902)

Locusts and wild honey - Burroughs, John, 1837 -1921 (Houghton, Mifflin, 1907)

Locusts and wild honey - Burroughs, John, 1837 -1921 (Houghton, Mifflin, 1900)

Louisiana herpetology, with a checklist of the batrachians and reptiles of the state and the avifauna of Louisiana, with an annotated list of the birds of the state - Beyer, George E. (George Eugene), 1861 -1926 ([s.n.], 1900)

Madera y bosques - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2008)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2005)

A Manual of American and European birds, reproduced in natural colors with their common and scientific names (Funk & Wagnalls, 1923)

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

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

A manual of North American birds - Ridgway, Robert, 1850 -1929 (J.B. Lippincott Co, 1900)

A manual of North American birds - Ridgway, Robert, 1850 -1929 (J. B. Lippincott Company, 1896)

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

A manual of the vertebrate animals of the northern United States : including the district north and east of the Ozark mountains, south of the Laurentian hills, north of the southern boundary of Virginia, and east of the Missouri river, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A. C. McClurg, 1916)

A manual of the vertebrate animals of the northern United States, including the district north and east of the Ozark mountains, south of the Laurentian hills, north of the southern boundary of Virginia, and east of the Missouri River, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A. C. McClurg and Company, 1899)

A manual of the vertebrate animals of the northern United States, including the district north and east of the Ozark mountains, south of the Laurentian hills, north of the southern boundary of Virginia, and east of the Missouri River, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A.C. McClurg, 1910)

A manual of the vertebrate animals of the northern United States, including the district north and east of the Ozark mountains, south of the Laurentian Hills, north of the southern boundary of Virginia, and east of the Missouri River, inclusive of marine species - Jordan, David Starr, 1851 -1931 (McClurg, 1888)

A manual of the vertebrate animals of the northern United States : including the district north and east of the Ozark Mountains, south of the Laurentian Hills, north of the southern boundary of Virginia, and east of the Missouri River, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A.C. McClurg, 1888)

Manual of the vertebrate animals of the northern U.S. ... inclusive of the marine species - Jordan, David Starr, 1851 -1931 (McClurg, 1894)

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, 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, 1884)

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

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1978)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1981)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1983)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1988)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1989)

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

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1995)

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

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1997)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 2016)

Maryland naturalist - Natural History Society of Maryland (The Society, 1958)

Massachusetts crop report - Massachusetts. State Board of Agriculture. ([Massachusetts State Board of Agriculture], 1895)

Massachusetts crop report - Massachusetts. State Board of Agriculture. ([Massachusetts State Board of Agriculture], 1899)

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

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, 2011)

Memoirs of the Nuttall Ornithological Club - Nuttall Ornithological Club. (The Club, 1905)

Memoirs of the Nuttall Ornithological Club - Nuttall Ornithological Club. (The Club, 1906)

Memoirs of the Nuttall Ornithological Club - Nuttall Ornithological Club. (The Club, 1920)

Memorial of life and entomologic work of Joseph Albert Lintner ... state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

Memorial of life and entomologic work of Joseph Albert Lintner, state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

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)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1935)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1938)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1944)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1950)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1956)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1971)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1974)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1980)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1983)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1986)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1989)

The Migrant - Tennessee Ornithological Society. (Tennessee Ornithological Society, 1991)

Migration of birds - U.S. Fish; Wildlife Service (Dept. of the Interior, Fish and Wildlife Service : for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1979)

The migration of North American birds - Lincoln, Frederick Charles, 1892 -1960 (U.S. Dept. of Agriculture, 1935)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1952)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1956)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1960)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1965)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1975)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1890)

Mittheilungen des Ornithologischen Vereines in Wien - Ornithologischer Verein in Wien. (Der Verein, 1888)

Monatsschrift des Deutschen Vereins zum Schutze der Vogelwelt - Deutscher Verein zum Schutze der Vogelwelt. ([s.n.], 1878)

Monatsschrift des Deutschen Vereins zum Schutze der Vogelwelt - Deutscher Verein zum Schutze der Vogelwelt. ([s.n.], 1882)

Monatsschrift des Deutschen Vereins zum Schutze der Vogelwelt - Deutscher Verein zum Schutze der Vogelwelt. ([s.n.], 1886)

Monatsschrift des Deutschen Vereins zum Schutze der Vogelwelt - Deutscher Verein zum Schutze der Vogelwelt. ([s.n.], 1888)

The Museum (W.F. Webb, 1894)

The Museum (W.F. Webb, 1895)

Museum bulletin - New York State Museum. (University of the State of New York, 1909)

Museum bulletin - New York State Museum. (University of the State of New York, 1915)

Museum paper - Geological Survey of Alabama. Museum. (1910)

Museum paper - Alabama Museum of Natural History. (Alabama Museum of Natural History, 1921)

Nachträge zu Nehrkorn's Eierkatalog - Nehrkorn, Adolph. (R. Friedländer & Sohn, 1914)

The National geographic magazine - National Geographic Society (U.S.) (National Geographic Society, 1913)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1906)

Natural areas of the Chesapeake Bay Region: ecological priorities (1974)

The natural history and topography of Groton, Massachusetts - Green, Samuel A. (Samuel Abbott), 1830 -1918 (J. Wilson and Son], 1912)

Natural science news - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1895)

The naturalist ([s.n.], 1889)

The naturalist of the Saint Croix. Memoir of George A. Boardman - Boardman, Samuel Lane, 1836 -1914 (Priv. print, 1903)

Naturalist's guide to the Americas - Ecological Society of America. Committee on the Preservation of Natural Conditions. (Williams & Wilkins, 1926)

Le Naturaliste canadien - Provancher, L. (Léon), 1820 -1892 (Éditions, l'Ardoise [etc.], 1909)

Le Naturaliste : journal des échanges et des nouvelles - Deyrolle, Émile, 1838 -1917 (Bureaux à Paris, 1904)

The naturalists' companion - Guelf, Charles P. ([C.P. Guelf], 1885)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1879)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1881)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1884)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1888)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1898)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1906)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1907)

A nature calendar; a record of the appearance of the flowers and birds - Thompson, Thomas Edward (The Morse Company, 1896)

Nature in Acadie - Swann, H. Kirke (Harry Kirke), 1871 -1926 (John Bale, 1895)

Nature in Acadie - Swann, H. Kirke (Harry Kirke), 1871 -1926 (J. Bale, 1895)

Nature lovers library (University Society Inc, 1923)

Naturgeschichte der Vögel Mitteleuropas - Naumann, Johann Andreas, 1747 -1826 (F. E. Köhler, 1901)

Naturgeschichte der Vögel Mitteleuropas - Hennicke, Carl R., 1865 -1941 (F.E. Köhler, 1901)

Naturwissenschaftliche Rundschau : wöchentliche Berichte über die Fortschritte auf dem Gesammtgebiete der Naturwissenschaften (Druck und verlag von Friedrich Vieweg und Sohn, 1893)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1895)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 1933)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 1948)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 1951)