Ornithology

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Kbhvn., 1943.

BREHM, A.E.

København, Philipsen, 1876.

WIESE, V.

(Skibby), 1956.

TODD, W.E. CLYDE.

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MEINERTZHAGEN, R.

Edinburgh, London, (1959).

ROBINSON, HERBERT C.

London, Witherby, 1928.

CARTHY, J.D.

London, 1956.

RUSS, KARL.

Hannover, 1871-73.

KENNEDY, P.G., ROBERT F. RUTTLEDGE, C.F. SCROOPE.

London, 1954.

BANKO, WINSTON E.

Washington, 1960.

SOMEREN, V.G.L. von.

Chicago, 1956.

NEUNZIG, KARL.

Magdeburg, 1921-13.

NAUMANN, J.A.

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BECHSTEIN, J.M.

London, Groombridge and Sons, (1837).

HOULIHAN, PATRICK F.

Warminster, Aris & Phillips, (1986).

MURRAY, JAMES A.

London & Bombay, Trübner & Co. etc., 1888-90.

WORM, OLE.

Lugduni Batavorum (Leiden), Ex Officina Elzeviriorum, 1655.

GABRIELSON, IRA a. FR.C. LINCOLN.

Harrisburg Pennsylvania, Stackpole Comp., (1959).