1. Bechstein, J. M.1856. Cage and chamber-birds, their natural history, habits, food, diseases, man-agement, and modes of capture, translated, with considerable addi-tions, etc., by H. G. Adams, incorporating the whole of Sweet's BritishWarblers, with numerous illustrations. (London), pp. xvi + 500.BechsteinxviCage and chamber-birds, their natural history, habits, food, diseases, management, and modes of capture1856
2. V. Jahresbericht (1880) des Ausschusses für Beobachtungsstationen der Vögel Deutschlands
3. Bonaparte, C. L., and Schlegel, H.1850. Monographie des Loxiens (Leyden and Diisseldorf), pp. xvii + 55, 54colored plates.BonapartexviiMonographie des Loxiens (Leyden and Diisseldorf)1850