Ornithology

BANNERMANN, DAVID A. a. JOSEPH A. VELLA-GAFFIERO.

Valletta, 1976.

FJELDSÅ, JON og NIELS KRABBE.

Copenhagen, 1990.

NICHOLSON, E.M.

London, 1951.

SALOMONSEN, FINN og GUSTAF RUDBECK (Red.).

Kbhvn.,(1962-61).

THIENEMANN, J.

Neudamm, (1938).

SUTTON, GEORGE MIKSCH.

Norman, (1951).

ALI, SÁLIM.

Oxford, 1962.

MACKINNON, JOHN.

Yogyakarta, Gadjah Mada University Press, 1990.

WILKINSON, E.S.

Shanghai, North-China Daily News & Herald Ltd., 1929.

CHECK-LIST OF NORTH AMERICAN BIRDS.

Lawrence, (1983).

DEIGNAN, HERBERT G.

Washington, 1963.

SHARROCK, J.T.R.

Hertfordshire, (1976).

SNOW, D.W. (Edt.).

Oxford, (1971).

LACK, DAVID.

Oxford, Edinburgh, 1971.

BEWICK, THOMAS.

Newcastle, 1832.

SPRUNT, ALEXANDER Jr. a. E. BURNHAM CHAMBERLAIN.

Columbia, 1949.

FISHER, JAMES.

London, 1952.

BEWICK, THOMAS (AND RALPH BEILBY).

Newcastle, For T. Bewick, Longman and Co., 1826.