No attempt has been made to quote all books in which extinct birds have been mentioned; not only would that mean a tedious, long work, and a book in itself, but, the repetitions being so numerous, it would have been of very little use. On the other hand, I have tried to quote the most important literature referring to Extinct Birds, and I have specially been anxious to cite and verify the principal ancient literature. Well known general works on birds in which extinct species have, of course, also been mentioned, are, as a rule, not quoted; such as: The 27 volumes of the Catalogue of Birds; Brisson's Ornithology; Daubenton's, Buffon's and Montbeillard's works; Latham's Ornithological Writings; Linnaeus' Systema Naturae in all its editions; Vieillot's writings; popular natural histories and school books; Brehm's Thierleben in its various editions; Finsch's Papageien; Gray's and Sharpe's Hand-lists; Dubois' Synopsis Avium, lists of specimens in Museums, and many others, in which extinct birds are as a matter of course mentioned. Three most complete detailed bibliographies must be named: The "Bibliography of the Didinae," forming Appendix B. of Strickland's "Dodo and its Kindred" (1848), the Bibliography of _Alca impennis_ by Wilhelm Blasius in the new Edition of Naumann, vol. XII, pp. 169-176 (1903), and the Bibliography referring to the Moas by Hamilton, in the Trans. New Zealand Institute XXVI and XXVII (1894, 1895). Most of the books and pamphlets quoted hereafter are in my library at the Zoological Museum at Tring, in the ornithological part of which Dr. Hartert and I have been specially interested for many years. Those books that are not in my library are marked with an asterisk, but several of these I have been able to consult in other libraries. The chronological order appeared to be best suited to the particular subject treated of. {xvi} 1580 or 90. COLLAERT, ADRIAN. Avium vivae icones, in aes incisae & editae ab Adriano Collardo. (On one of the plates is figured the "Avis Indica." This figure seems to have been the original of the representations in Dubois' and Leguat's works.) 1601. JACOB CORNELISZ NECK. Het tweede Boek, Journael oft Dagh-register, inhoudende een warachtig verhael, etc., etc. Middelburch, Anno 1601. (On picture No. 2, page 7, the Dodo is figured and described as follows: "Desen Voghel de is soo groot als een Swaen, gaven hem de naem Walchvoghel, want doen wy de leckere Duyfkens ende ande cleyn ghevoghelte ghenoech vinghen, doen taelden wy niet meer naer desen Voghel." This appears to be the first mention of the Dodo in literature.) 1605. CLUSIUS. Caroli Clusii Atrebatis ... Exoticorum libri decem: Quibus Animalium, Plantarum, Aromatum historiae describuntur. Ex Officina Plantiniana Raphelengii, 1605.