Ornithology

NAUMANN, J.A. - DROSSELN.

Gera-Untermhaus, 1905.

NAUMANN, J.A.

Gera-Untermhaus, (1897).

RINGMÆRKNINGERNE.

Kbhvn., 1931-63.

IREDALE, TOM.

Melbourne, (1956).

NAUMANN, J.A.

Gera-Untermhaus, (1902).

DANSK ZOOTOPOGRAFISK UNDERSØGELSE.

Kbhvn., 1937-67.

ENEHJELM, CURT af.

Pfungstadt, (1957).

THE AUK.

Lancaster, PA., 1929-35.

RIDGWAY, ROBERT.

Philadelphia, 1887.

NAUMANN, J.A.

Gera-Untermhaus, (1900).

CHECK-LIST OF THE NORTH AMERICAN BIRDS.

Lancaster, PA., 1931.

WHITE, GILBERT.

London, Swan Sonnenschein, 1887.

DARLING, F.FRASER a. J.MARTON BOYD.

London, 1964.

FLOERICKES, KURT.

Stuttgart, Wiesbaden, 1922.

HOFFMANN, BERNHARD.

Bernburg, 1937.

GROSVENOR, GILBERT AND ALEXANDER WESTMORE. (EDTS.).

Washington, National Geographical Society, 1937).

FUGLENE VED DE DANSKE FYR.

Kbhvn., 1891-1939.

DANSK ORNITHOLOGISK FORENINGS TIDSSKRIFT.

Kbhvn., 1906-63.