Ornithology

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ALLEN, ROBERT PORTER.

N.Y., 1956.

KOFORD, CARL B.

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JOHNSSON, A.A. a. W.H. PAYN.

London, 1957.

KINSKY, F.C.

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ROSENIUS, PAUL.

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NICOLAI, JÜRGEN u. HANS E. WOLTERS.

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VIETINGHOFF-RIESCH, ARNOLD Frhr.von.

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WHITE, GILBERT.

London, Longman, Hurst, ect., 1822.

KUPFFER, C. und B. BENECKE.

Halle, 1879.

UTTENDÖRFER, O.

(Berlin), J. Neumann=Neudamm, (1939).

GOULD, JOHN.

London, Printed by Taylor and Francis - Published by the Author, (1862-) 73.

GOULD, JOHN.

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BERG, BENGT.

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DIXON, CHARLES.

London, Glasgow, Blackie, 1900.