The birds of North and Middle America : a descriptive catalogue of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean sea, and the Galapagos Archipelago - Ridgway, Robert, 1850 -1929 (Govt. Print. Off, 1902)

The birds of North and Middle America : a descriptive catalogue of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean sea, and the Galapagos Archipelago - Ridgway, Robert, 1850 -1929 (Govt. Print. Off, 1904)

The birds of North and Middle America : a descriptive catalogue of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean sea, and the Galapagos Archipelago - Ridgway, Robert, 1850 -1929 (Govt. Print. Off, 1911)

The birds of Ohio; a revised catalogue - Jones, Lynds, 1865 -1951 (Academy of Science, 1903)

The birds of Ontario; being a concise account of every species of bird known to have been found in Ontario with a description of their nests and eggs and instructions for collecting birds and preparing and preserving skins, also directions how to form a collection of eggs - McIlwraith, Thomas. (T. F. Unwin, 1894)

The birds of Ontario; being a concise account of every species of bird known to have been found in Ontario, with a description of their nests and eggs, and instructions for collecting birds and preparing and preserving skins, also directions how to form a collection of eggs - McIlwraith, Thomas. (T. Fisher Unwin, 1894)

The birds of Ontario : being a list of birds observed in the province of Ontario, with an account of their habits, distribution, nests, eggs, &c - McIlwraith, Thomas, 1824 -1903 (Hamilton Association, 1886)

The birds of Ontario, being a list of birds observed in the province of Ontario, with an account of their habits, distribution, nests, eggs &c - McIlwraith, Thomas. (A. Lawson & co., printers, 1886)

The birds of Ontario being a list of birds observed in the Province of Ontario, with an account of their habits, distribution, nests, eggs, &c - McIlwraith, Thomas, 1824 -1903 (Hamilton Association, 1886)

The birds of our country - Stewart, H. E. (Digby, Long & Co, 1898)

The birds of our country - Stewart, H. E. (Digby, Long, 1897)

The birds of our rambles : with a companion for the country - Dixon, Charles, 1858 -1926 (Chapman and Hall, 1891)

The birds of Oxfordshire - Aplin, O. V. (Oliver Vernon), 1858 -1940 (Clarendon Press, 1889)

The birds of Pembrokeshire and its islands - Mathew, Murray A. (R.H. Porter, 1894)

The birds of Shakespeare - Harting, James Edmund, 1841 -1928 (J. Van Voorst, 1871)

The birds of Shakespeare; critically examined, explained, and illustrated - Harting, James Edmund, 1841 -1928 (John Van Voorst, 1871)

The birds of Sherwood Forest : with notes on their habits, nesting, migrations, etc., being a contribution to the natural history of the country - Sterland, W.J. (L. Reeve, 1869)

The birds of Shetland: with observations on their habits, migration, and occasional appearance - Saxby, Stephen H. (Maclachlan & Stewart, 1874)

The birds of Siberia; a record of a naturalist's visits to the valleys of the Petchora and Yenesei - Seebohm, Henry, 1832 -1895 (J. Murray, 1901)

The birds of Somersetshire - Smith, Cecil, 1826 -1890 (John van Voorst, 1869)

The birds of South Africa - Sclater, William Lutley, 1863 -1944 (R. H. Porter, 1900)

The birds of South Africa - Sharpe, Richard Bowdler, 1847 -1909 (Bernard Quaritch, 1875)

The birds of South Africa : a descriptive catalogue of all the known species occurring south of the 28th parallel of south latitude - Layard, Edgar Leopold, 1824 -1900 (Juta, 1867)

The birds of Sussex - Borrer, William, 1814 -1898 (R.H. Porter, 1891)

The birds of the Assyrian monuments and records - Houghton, W. (William), 1828 -1895 (1884)

The birds of the Bermudas - Reid, Savile Grey, 1845 -1915 (Bermuda, Printed at the Royal Gazette Office, 1883)

Birds of the British Empire - Greene, W. T. (William Thomas) (Imperial Press, 1898)

The birds of the British Isles and their eggs. First series, Comprising families Corvidae to Sulidae - Coward, T. A. (Thomas Alfred), 1867 -1933 (F. Warne, 1919)

Birds of the British Isles - Duncan, John, of Newcastle upon Tyne. (W. Scott, 1898)

Birds of the British Isles - Duncan, John. (W. Scott, 1898)

The birds of the Chicago area - Woodruff, Frank Morley (Jennings and Graham], 1907)

The birds of the Chicago area - Woodruff, Frank Morley (Printed by Jennings and Graham], 1907)

Birds of the Colorado valley ... scientific and popular information concerning North American ornithology - Coues, Elliott, 1842 -1899 (Gov't print. off, 1878)

Birds of the Colorado valley ... scientific and popular information concerning North American ornithology - Coues, Elliott, 1842 -1899 (Govt. Print. Off, 1878)