1893. H. O. Forbes. The Moas of New Zealand.
In Natural Science II, pp. 374-380.
1893. A. Hamilton. On the Fissures and Caves at the Castle Rocks, Southland; with a description of the remains of the Existing and Extinct Birds found in them.
(In Trans. and Proceed. New Zealand Inst. XXV, pp. 88-106; with figures.)
1893. A. Newton. "Extermination." In A Dictionary of Birds.
(See also in Encyclopaedia Britannica.)
1893-1900. Walter Rothschild. The Avifauna of Laysan and the Neighbouring Islands: with a complete history to date of the Birds of the Hawaiian Possessions. London 1893-1900. With numerous plates.
(Account and coloured plates of the extinct birds of Oahu and Hawaii.)
1894. Milne-Edwards et Grandidier. Observations sur les Aepyornis de Madagascar.
In: Comptes Rendus hebd. des Séances de l'Acad. d. Sciences, Paris, Vol. CXVIII, Part I, pp. 122-127.