Katalog der Vogelsammlung in Museum der Senckenbergischen Naturforschenden Gesellschaft in Frankfurt am Main - Senckenbergische Naturforschende Gesellschaft. (Knauer, 1891)

Kentucky naturalist news - Kentucky Society of Natural History. (Kentucky Society of Natural History, 2009)

The Kentucky warbler - Kentucky Ornithological Society. (Kentucky Ornithological Society, 1953)

The Kentucky warbler - Kentucky Ornithological Society. (Kentucky Ornithological Society, 2001)

Kenya birds - National Museums of Kenya. Department of Ornithology. (Dept. of Ornithology, National Museums of Kenya and the Kenya Section of the International Council for Bird Preservation, 1994)

Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1887)

Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1890)

A key to the birds of the lower Yangtse Valley, with popular descriptions of the species commonly seen - Gee, Nathaniel Gist, 1876 -1937 (Shanghai Mercury Limited, Print, 1917)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 1998)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 2004)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 2012)

Kirtlandia - Cleveland Museum of Natural History (Cleveland Museum of Natural History, 1978)

Det Kongelige Danske videnskabernes selskabs skrifter. Naturvidenskabelig og mathematisk afdeling - Kongelige Danske videnskabernes selskab. (1880)

Kosmos (Ernst Günther, 1877)

Lehrbuch der vergleichenden mikroskopischen Anatomie der Wirbeltiere - Royal College of Physicians of Edinburgh. (G. Fischer, 1914)

Lehrbuch der vergleichenden mikroskopischen Anatomie der Wirbeltiere - Oppel, Albert, 1863 -1915 (Fischer, 1896)

Lehrbuch der Zoologie - Claus, Carl, 1835 -1899 (Elwert, 1897)

Lehrbuch der zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert, 1883)

Lehrbuch der zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert, 1891)

Life histories of Central American highland birds - Skutch, Alexander F. (Alexander Frank), 1904 -2004 (The Club, 1967)

Life-histories of the birds of eastern Pennsylvania - Gentry, Thomas G. (Thomas George), 1843 -1905 (Pub. by the author, 1876)

A List of birds' eggs in the collection of Mr. William Stoate, Wembdon, Bridgewater - Stoate, William. (1880)

A list of European birds, including all species found in the western palaearctic region - Dresser, H. E. (Henry Eeles), 1838 -1915 (The Author, 1881)

List of New Guinea birds : a systematic and faunal list of the birds of New Guinea and adjacent islands - Mayr, Ernst, 1904 -2005 (American Museum of Natural History, 1941)

A list of the birds of Australia : containing the names and synonyms connected with each genus, species, and subspecies of birds found in Australia, at present known to the author - Mathews, Gregory Macalister Gregory Macalister 1876 -1949 (Witherby, 1913)

A list of the birds of Maine, showing their distribution by counties and their status in each county - Knight, Ora Willis, 1874 -1913 (Kennebec journal print, 1897)

A list of the birds of the Phillipian sub-region : which do not occur in Australia - Mathews, Gregory Macalister Gregory Macalister 1876 -1949 (Zoological Museum], 1912)

List of the described birds of Mexico, Central America, and the West Indies : not in the collection of the Smithsonian Institution - Smithsonian Institution (The Institution, 1863)

A list of the publications of the United States National Museum (1875-1900) including the Annual reports, Proceedings, Bulletins, Special bulletins, and Circulars, with index of titles - United States National Museum (Govt. Print. Off, 1902)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1966)

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, 1975)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1976)

O livrinho das aves [por] Rodolpho von Ihering ... - Ihering, Rodolpho von, 1883 -1939 (1914)

London Bird Report - London Natural History Society. (1962)

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Lotos - Deutscher Naturwissenschaftlich-Medizinischer Verein für Böhmen "Lotos." (Verlag des Deutschen Naturwissenschaftlich-Medizinischen Vereines für Böhmen "Lotos", 1911)

Magyarország Madarai; hazai madárvilág megismerésének vezérfonala - Madarász, Gyula, 1858 -1931 (1899)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1979)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1983)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1986)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1987)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1990)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1993)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1996)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1999)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 2001)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 2002)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 2006)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 2009)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 2010)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 2011)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 2012)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 2013)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 2014)

Manitoba and the great North-west : the field for investment, the home of the emigrant : being a full and complete history of the country - Macoun, John, 1831 -1920 (World Pub. Co, 1882)

A manual of forestry - Schlich, William, Sir, 1840 -1925 (Bradbury, Agnew, 1907)

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, 1887)

A manual of ornithology - Stearns, Winfrid Alden, 1852 -1909 (Printed for theauthor at the Atlantic University Print. Office, 1895)

A manual of ornithology - Stearns, Winfrid Alden, 1852 -1909 (Printed for the author at the Atlanta University Printing Office, 1895)

A manual of Philippine birds - McGregor, Richard C. (Richard Crittenden), 1871 -1936 (Bureau of Printing, 1909)

Manual of taxidermy : a complete guide in collecting and preserving birds and mammals - Maynard, C. J. (Charles Johnson), 1845 -1929 (S.E. Cassino and Co, 1884)

Manuale di ornitologia italiana; elenco descrittivo degli uccelli stazionari o di passaggio finora osservati in Italia - Arrigoni degli Oddi, Ettore, 1867 -1942 (U. Hoepli, 1904)