A hand-list of the genera & species of birds. (Nomenclator avium tum fossilium tum viventium) - Sharpe, Richard Bowdler, 1847 -1909 (Printed by order of the Trustees, 1912)

Handboek der dierkunde - Leuckart, Rudolf, 1823 -1898 (J.C.A. Sulpke, 1859)

Handbook of birds of eastern North America - Chapman, Frank M. (Frank Michler), 1864 -1945 (Appleton, 1907)

Handbook of birds of eastern North America with keys to the species and descriptions of their plumages, nests and eggs, their distribution and migrations and a brief account of their haunts and habits with introductory chapters on the study of ornithology, how to identify birds and howto collect and preserve birds, their nests, and eggs - Chapman, Frank M. (Frank Michler), 1864 -1945 (D. Appleton, 1895)

Handbook of birds of the western United States : including the Great Plains, Great Basin, Pacific Slope, and lower Rio Grande Valley - Bailey, Florence Merriam, 1863 -1948 (Houghton Mifflin, 1915)

Handbook of birds of the western United States : including the Great Plains, Great Basin, Pacific Slope, and lower Rio Grande Valley - Bailey, Florence Merriam, 1863 -1948 (Houghton Mifflin Company, 1921)

Handbook of birds of the western United States : including the great basin, Pacific slope, and lower Rio Grande Valley - Bailey, Florence Merriam, 1863 -1948 (Houghton Mifflin, 1920)

Handbook of birds of the western United States, including the great plains, great basin, Pacific slope, and lower Rio Grande Valley - Bailey, Florence Merriam, 1863 -1948 (Houghton, Mifflin and company, 1902)

Handbook of birds of the western United States, including the Great Plains, Great Basin, Pacific Slope, and lower Rio Grande valley - Bailey, Florence Merriam, 1863 -1948 (Houghton Mifflin company, 1908)

Handbook of birds of the western United States, including the great plains, great basin, Pacific slope, and lower Rio Grande valley - Bailey, Florence Merriam, 1863 -1948 (Houghton, Mifflin and company, 1904)

Handbook of zoology - Hoeven, Jan van der, 1801 -1868 (University Press, 1856)

Handbook of zoology - Clark, William, 1788 -1855 (Longman, Brown, Green, Longmans, and Roberts, 1858)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1960)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1983)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1992)

Handbuch der zoologie : Nach der zweiten holländischen ausgabe - Hoeven, Jan van der, 1801 -1868 (L. Voss, 1850)

Handbuch der zoologie - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1875)

Handbuch der zoologie - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1868)

Handbuch für Vogelliebhaber, -Züchter und -Händler - Russ, Karl, 1833 -1899 (Carl Rümpler, 1878)

Handwörterbuch der naturwissenschaften - Verworn, Max, 1863 -1921 (G. Fischer, 1912)

Handwörterbuch der Zoologie - Dalla Torre, K. W. von (Karl Wilhelm), 1850 -1928 (F. Enke, 1887)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1875)

Histoire de l'Académie royale des sciences - Académie royale des sciences (France) (1686)

A history of British birds, indigenous and migratory: including their organization, habits, and relations; remarks on classification and nomenclature; an account of the principal organs of birds, and observations relative to practical ornithology ... - MacGillivray, William 1796 -1852 (Printed for Scott, Webster, and Geary, 1839)

A history of British birds, indigenous and migratory: including their organization, habits, and relations; remarks on classification and nomenclature; an account of the principal organs of birds, and observations relative to practical ornithology ... - MacGillivray, William 1796 -1852 (Printed for Scott, Webster, and Geary, 1837)

The history of Bucks County, Pennsylvania : from the discovery of the Delaware to the present time - Davis, W. W. H. (William Watts Hart), 1820 -1910 (Democrat Book and Job Office Print, 1876)

History of Delaware County, Pennsylvania : from the discovery of the territory included within its limit to the present time, with a notice of the geology of the county, and catalogues of its minerals, plants, quadrupeds, and birds, written under the direction and appointment of the Delaware County Institute of Science - Delaware County Institute of Science. (Printed by Henry B. Ashmead, 1862)

History of Delaware County, Pennsylvania, from the discovery of the territory included within its limit to the present time, with a notice of the geology of the county, and catalogues of its minerals, plants, quadrupeds, and birds, written under the direction and appointment of the Delaware County Institute of Science - Delaware County Institute of Science. (Printed by H.B. Ashmead, 1862)

History of Lancaster County - Rupp, I. Daniel (Israel Daniel), 1803 -1878 (G. Hills, 1844)

History of Lancaster County : to which is prefixed a brief sketch of the early history of Pennsylvania - Rupp, I. Daniel (Israel Daniel), 1803 -1878 (G. Hills, 1844)

History of Lancaster County : to which is prefixed a brief sketch of the early history of Pennsylvania - Rupp, I. Daniel (Israel Daniel), 1803 -1878 (Gilbert Hills, 1844)

A history of North American birds - Baird, Spencer Fullerton, 1823 -1887 (Little, Brown, 1905)

A history of North American birds. Land birds - Baird, Spencer Fullerton, 1823 -1887 (Little, Brown, 1874)

A history of North American birds. Land birds - Baird, Spencer Fullerton, 1823 -1887 (Little, Brown)

A history of the birds of Colorado - Sclater, William Lutley, 1863 -1944 (Witherby & co, 1912)

A history of the birds of Europe, not observed in the British Isles - Bree, Charles Robert, 1811 -1886 (Groombridge and Sons, 1863)

History of the birds of Kansas - Goss, N. S. (Nathaniel S.) (G. W. Crane, 1891)

History of Vermont, natural, civil, and statistical, in three parts, with a new map of the state, and 200 engravings - Thompson, Zadock, 1796 -1856 (Pub. for the author, by C. Goodrich, 1842)

History of Vermont, natural, civil and statistical, in three parts, with an appendix. 1853 - Thompson, Zadock, 1796 -1856 (The author, 1853)

History of Vermont, natural, civil and statistical, in three parts, with a new map of the state, and 200 engravings - Thompson, Zadock, 1796 -1856 (C. Goodrich, 1842)

The history, work & aims of the Michigan Audubon society - Butler, Jefferson. (Pub. by the society, 1907)

The Horticulturist and journal of rural art and rural taste (Luthur Tucker, 1851)

How to sex cage birds (British and foreign) - Butler, Arthur G. (Arthur Gardiner), 1844 -1925 ("The Feathered world", "Canary and cage-bird life", 1907)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1860)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1861)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1865)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1867)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1868)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1883)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1890)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1905)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1906)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1915)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1859)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1877)

The Illinois Natural History Survey reports - Illinois. Natural History Survey Division (Natural History Survey, Illinois Institute of Natural Resources, 1973)

The illustrated book of canaries and cage-birds, British and foreign - Swaysland, W. (Cassell, Petter, Galpin & Co, 1878)

The illustrated natural history - Wood, J. G. (John George), 1827 -1889 (Routledge, Warne, and Routledge, 1863)

The illustrated natural history - Wood, J. G. (John George), 1827 -1889 (G. Routledge, 1880)

The illustrated natural history - Goode, G. Brown (George Brown), 1851 -1896 (Routledge, Warne and Routledge, 1862)

Illustrated natural history of the animal kingdom : being a systematic and popular description of the habits, structure, and classification of animals from the highest to the lowest forms, with their relations to agriculture, commerce, manufactures, and the arts - Goodrich, Samuel G. (Samuel Griswold), 1793 -1860 (Derby & Jackson, 1859)

Illustrated natural history of the animal kingdom, being a systematic and popular description of the habits, structure, and classification of animals from the highest to the lowest forms, with their relations to agriculture, commerce, manufactures, and the arts - Goodrich, Samuel G. (Samuel Griswold), 1793 -1860 (Derby & Jackson, 1859)

Illustrated natural history of the animal kingdom, being a systematic and popular description of the habits, structure, and classification of animals from the highest to the lowest forms, with their relations to agriculture, commerce, manufactures, and the arts - Goodrich, Samuel G. (Samuel Griswold), 1793 -1860 (Derby & Jackson, 1865)

Illustrations of British ornithology - Selby, Prideaux John, 1788 -1867 (Printed for the proprietor, and published by W.H. Lizars ; London : Longman, Rees, Orme, Brown, Green and Longman ; Dublin : W. Curry Jun. & Co, 1833)

Illustrations of ornithology - Lear, Edward, 1812 -1888 (Published by W.H. Lizars, 1826)

Illustrations of the American ornithology of Alexander Wilson and Charles Lucian Bonaparte : with the addition of numerous recently discovered species and representations of the whole sylvae of North America - Bonaparte, Charles-Lucien, 1803 -1857 (Frazer & Co, 1835)

Illustrations of the nests and eggs of birds of Ohio : with text - Jones, Howard, 1853 -1945 ([s.n.], 1886)

Improving productivity on forests and rangelands : 1980 research accomplishments - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, 1981)

Index ad Caroli Luciani Bonaparte Conspectum generum avium - Bonaparte, Charles-Lucien, 1803 -1857 (apud E. J. Brill, 1865)

Index animalium; sive, Index nominum quae ab A. D. MDCCLVIII generibus et speeiebus animalium imposita sunt - Sherborn, Charles Davies, 1861 -1942 (e typographio academico, 1801)