Katalog der Eiersammlung : nebst Beschreibungen der aussereuropäischen Eier - Nehrkorn, Adolph (H. Bruhn, 1899)

Katalog der systematischen Vogelsammlung des Provinzial-Museums in Hannover - Hannover (Germany). Provinzial-Museums. (1897)

Katalog der vögel welche im Naturhistorischen Museum in Colmar aufgestellt sind - Schneider, Gustav. (s.n, 1896)

Katalog der Vogelsammlung aus der Provinz Hannover - Hannover (Germany : Province) (1897)

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

Die Kennzeichen der Vögel Deutschlands; Schlüssel zum bestimmen, deutsche und wissenschaftliche Benennungen, geographische Verbreitung, Brut- und Zugzeiten der deutschen Vögel - Reichenow, Anton, 1847 -1941 (J. Neumann, 1920)

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 - Coues, Elliott, 1842 -1899 (Macmillan, 1884)

A Key to the Birds of the Hawaiian Group - Bryan, William Alanson, 1875 -1942 (Bishop Museum Press, 1901)

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, 1957)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 1976)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 1978)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 1984)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 1989)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 1993)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 1995)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 1997)

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

The Kingbird - Federation of New York State Bird Clubs. (s.n, 2013)

The Kingbird - Federation of New York State Bird Clubs. (s.n, 2016)

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

Kosmos (Ernst Günther, 1878)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1913)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1918)

Die Kunst, Vögel als Bälge zu bereiten, auszustopfen, aufzustellen und aufzubewahren : nebst einer kurzen Anleitung, Schmetterlinge und Käfer zu fangen, zu präpariren, aufzustellen und aufzubewahren - Brehm, L. (Ludwig), 1787 -1864 (B.F. Voigt, 1842)

Lebensbilder aus der Tierwelt - Meerwarth, Hermann, 1870 - (Voigtländer, 1908)

Lehrbuch der Naturgeschichte - Perleb, Karl Julius, 1794 -1845 (Friedrich Wagner, 1831)

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

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

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

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

Leopoldina - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmann & Sohn, 1880)

Leopoldina - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmann & Sohn, 1883)

Life histories of North American gulls and terns : order Longipennes - Smithsonian Institution (Govt. Print. Off, 1921)

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 British India - Skinner, E. R. (Kent, 1905)

A list of the birds of Jamaica - Bangs, Outram, 1862 -1932 (Govt. print. off, 1920)

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)

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 - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society, 1896)

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

Livro jubilar do professor Lauro Travassos editado para comemorar o 25 anniversario de suas actividades scientificas ([s.n.], 1938)

London Bird Report - London Natural History Society. (1996)

London Bird Report - London Natural History Society. (2014)

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

Mährens und k. k. Schlesiens Fische, Reptilien und Vögel : ein Beitrag zur Fauna beider Kronländer - Heinrich, Albin. (Nitsch und Grosse, 1856)

Madagascar: an environmental profile (1987)

Madagascar: profil de l'environnement (1990)

MAGNT research report - Museums; Art Galleries of the Northern Territory (Museums and Art Galleries of the Northern Territory, 2005)

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

Magyarország madarai különös tekintettel gazdasági jelentöségökre. Irta Chernelházi Chernel István. Képekkel ellátta Nécsey István. Intézte Herman Ottó - Herman, Ottó, 1835 -1914 (1899)

Malacologia - Institute of Malacology. (Institute of Malacology], 1966)

Malacologia - Institute of Malacology. (Institute of Malacology], 1988)

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, 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, 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, 2013)

Mammalia, Aves, Reptilia, Amphibia, Pisces - Matschie, Paul, 1861 -1926 (G. Fischer, 1909)

Management of wildlife and fish habitats in forests of western Oregon and Washington - United States. Bureau of Land Management. Desert Planning Staff - (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1985)

Managing vertebrate invasive species : proceedings of an international symposium, Fort Collins, Colorado, August 7-9, 2007 - United States. Animal; Plant Health Inspection Service. (USDA APHIS Wildlife Services, National Wildlife Research Center, 2007)

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 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 palæontology for the use of students : with a general introduction on the principles of palaeontology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1872)

A manual of palæontology, for the use of students; with a general introduction on the principles of palæontology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood and sons, 1879)

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)

A manual of the birds of Australia - Iredale, Tom, 1880 -1972 (H.F. & G. Witherby, 1921)

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)