Det Kongelige Danske videnskabernes selskabs skrifter. Naturvidenskabelig og mathematisk afdeling - Kongelige Danske videnskabernes selskab. (1838)

Kortbegrip van het zamenstel der natuur - Linné, Carl von, 1707 -1778 (By J. van Schoonhoven, en Comp, 1772)

Kritische Übersicht der europäischen Vögel. Revue critique des oiseaux d'Europe - Schlegel, H. (Hermann), 1804 -1884 (Arnz, 1844)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1780)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1782)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1783)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1800)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1817)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1826)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1827)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1835)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1836)

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)

Kurze Beschreibung der Vögel Liv- und Esthlands - Meyer, Bernhard, 1767 -1836 (Johann Leonhard Schrag, 1815)

Kurzgefasste nachrichten, die naturhistorie Dännemark betreffend. Aus dem Dänischen uberseszt - Pontoppidan, Erich, 1698 -1764 (G. Rothens, 1765)

Labrador, the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (The Macmillan co, 1909)

Labrador, the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (The Macmillan co, 1913)

Labrador, the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (The Macmillan company, 1922)

Labrador : the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (Macmillan, 1912)

Labrador : the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (Macmillan Co, 1909)

Labrador, the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (Macmillan, 1909)

Le lac de Grand-Lieu : monographie phytogéographique - Gadeceau, Émile 1845 -1928 (A. Dugas, 1909)

Lake Maxinkuckee : a physical and biological survey - Evermann, Barton Warren, 1853 -1932 (Dept. of Conservation, 1920)

Lake Maxinkuckee. a physical and biological survey - Evermann, Barton Warren, 1853 -1932 (Wm. B. Burford, printer], 1920)

Lake Umbagog journals, 1871-1916 (inclusive) - Brewster, William, 1851 -1919 (1871)

Land and sea birds nesting within the Arctic Circle in the lower Mackenzie River district - Historical; Scientific Society of Manitoba. (s.n.], 1890)

Latreille's Naturliche Familien des Thierreichs - Latreille, P. A. (Pierre André), 1762 -1833 (Im Verlage des Gr. H.S. priv. Landes-Industrie- Comptoirs, 1827)

Die Lebensweise der Vögel - Rennie, James, 1787 -1867 (Baumgärtner, 1835)

Lectiones publicae de vermibus interstinalibus; inprimis humanis, quas habuit in Musaeo rer. nat. acad Lundensis d.XVIII Martii et sequ. MDCCLXXX-IV - Retzius, Anders Jåhan, 1742 -1821 (Typ. reg, 1786)

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

Lehrbuch der Zootomie; anatomische Charakteristik der Thierklassen, als Einleitung in das Studium der Zoologie, vergleichenden Anatomie und Physiologie mit Hinweisung auf die Icones zootomicae - Frey, Heinrich, 1822 -1890 (Voss, 1843)

Leitfaden zum Bestimmen der Vögel Mittel-Europas, ihrer Jugendkleider und ihrer Nester, nach leicht und sicher erkennbaren Merkmalen - Dahl, Friedrich, 1856 -1929 (Verlag von Gebrüder Borntraeger, 1912)

Le Léman : monographie limnologique - Forel, F. A. (François Alphonse), 1841 -1912 (F. Rouge, 1904)

Life and letters of Alexander Goodman More, F.R.S.E., F.L.S., M.R.I.A., with selections from his zoological and botanical writings - More, Alexander Goodman, 1830 -1895 (Hodges, Figgis & co. (ltd.), 1898)

Life and letters of Alexander Goodman More, with selections from his zoological and botanical writings - More, Alexander Goodman, 1830 -1895 (Hodges, Figgis, 1898)

Life and sport on the north shore of the lower St. Lawrence and Gulf, containing chapters on salmon fishing, trapping, the folk-lore of the Montagnais Indians and tales of adventure on the fringe of the Labrador peninsula - Comeau, Napoleon A. (Napoleon Alexander), 1848 -1923 (Daily Telegraph Printing House, 1909)

Life histories of North American wild fowl : order Anseres (part) - Bent, Arthur Cleveland, 1866 -1954 (G.P.O, 1923)

Life histories of North American wild fowl : order Anseres (part) - Smithsonian Institution (G.P.O, 1925)

Life of a Scotch naturalist : Thomas Edward, associate of the Linnaean society - Smiles, Samuel, 1812 -1904 (Harper & brothers, 1877)

The life of a Scotch naturalist, Thomas Edward, Associate of the Linaean society - Smiles, Samuel, 1812 -1904 (J. Murray, 1905)

Life of a Scotch naturalist: Thomas Edward, associate of the Linnaean Society - Smiles, Samuel, 1812 -1904 (Harper & brothers, 1876)

Life of a Scotch naturalist, Thomas Edward, associate of the Linnean Society - Smiles, Samuel, 1812 -1904 (John Murray, 1877)

Life of a Scotch naturalist, Thomas Edward, associate of the Linnean Society - Smiles, Samuel, 1812 -1904 (J. Murray, 1876)

Life of a Scotch naturalist, Thomas Edward, associate of the Linnean Society - Smiles, Samuel, 1812 -1904 (J. Murray, 1877)

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

A List of British birds - British Ornithologists' Union (British Ornithologists' Union, 1915)

A List of British birds - British Ornithologists' Union (John Van Voorst, 1883)

A list of British birds ... - Ogilvie-Grant, W. R. (William Robert), 1863 -1924 (1910)

A list of British birds belonging to the Humber district : having a special reference to their migrations - Cordeaux, John. (R. H. Porter, 1899)

A list of British birds - British Ornithologists' Union (British ornithologists' union, 1915)

A list of British birds - British Ornithologists' Union (J. van Voorst, 1883)

A list of British birds, with, as an appendix, the "Graduates list" for labelling eggs - Marsden, Herbert W. (1881)

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

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

A list of European birds, including all those found in the western palaearctic area - Noble, Heatley. (R.H. Porter, 1898)

List of North Dakota birds : found in the Big Coulee, Turtle Mountains and Devils Lake region, as noted during the years 1890 to 1896 and verified in the subsequent years to date - Judd, Elmer T. (Published by the author, 1917)

List of the animals in the gardens of the Zoological Society : with notices respecting them : May, 1837 - Zoological Society of London. (Printed by Richard and John E. Taylor, 1837)

A list of the birds of Buffalo and vicinity - Bergtold, W. H. (William Harry), 1865 -1956 (1889)

A list of the birds of eastern North America - Cory, Charles B. (Charles Barney), 1857 -1921 (For sale by B. Whidden, 1896)

A list of the birds of Florida - Cory, Charles B. (Charles Barney), 1857 -1921 (For sale by B. Whidden, 1896)

A list of the birds of Hudson highlands : with annotations - Essex Institute. (s.n.], 1878)

List of the birds of India - Hume, Allan Octavian, 1829 -1912 (1879)

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 New Hampshire - Allen, Glover M. (Glover Morrill), 1879 -1942 (Nature press, 1903)

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

A list of the birds of the West Indies, including the Bahama Islands and the Greater and Lesser Antilles, excepting the Islands of Tobago and Trinidad - Cory, Charles B. (Charles Barney), 1857 -1921 (Estes & Lauriat, 1885)

A list of the birds of the West Indies, including the Bahama Islands, and the Greater and Lesser Antilles, excepting the islands of Tobago and Trinidad - Cory, Charles B. (Charles Barney), 1857 -1921 (Estes & Lauriat, 1886)

A list of the genera of birds : with their synonyma and an indication of the typical species of each genus - Gray, George Robert, 1808 -1872 (Printed and sold by R. and J.E. Taylor, 1841)

A list of the genera of birds : with their synonyma an indication of the typical species of each genus - Gray, George Robert, 1808 -1872 (R. and J.E. Taylor, 1840)

List of the osteological specimens in the collection of the British Museum - British Museum (Natural History) (1847)

List of the specimens of birds in the collection of the British Museum - Gray, George Robert, 1808 -1872 (printed by the order of the Trustees, 1844)

List of the specimens of birds in the collection of the British Museum - Gray, George Robert, 1808 -1872 (printed by the order of the Trustees, 1848)

List of the specimens of British animals in the collection of the British Museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1850)

List of the specimens of British animals in the collection of the British Museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1852)

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 - 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 - 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, 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 - London Zoo (London, England) (The Society, 1865)

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

The Literary record and journal of the Linnaean Association of Pennsylvania College - Pennsylvania College. Linnaean Association. (The Association, 1844)

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

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 2008)

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

M. Th. Brünnichii Ornithologia borealis, sistens collectionem avium : ex omnibus, Imperio danico subjectis, provinciis insulisqve borealibus Hafniæ factam, cum descriptionibus novarum, nominibus incolarum, locis natalium et icone - Brünnich, M. Thr. (Morten Thrane), 1737 -1827 (Typis Andreæ Hartvigii Godiche, 1764)

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

Magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl [etc.], 1828)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1829)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1830)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1831)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1832)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1837)

The Magazine of natural history / conducted by Edward Charlesworth - Charlesworth, Edward. (s.n.], 1838)

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)