Ornithology

HOLGERSEN, HOLGER.

Oslo, 1945.

GOULD, JOHN.

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

GOULD, JOHN.

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

GOULD, JOHN.

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

GOULD, JOHN.

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

GOULD, JOHN.

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

GOULD, JOHN.

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

GOULD, JOHN.

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

GOULD, JOHN.

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

ANKER, JEAN.

Copenhagen, 1938.

GOODWIN, DEREK.

London, 1967.

LOWERY, GEORGE H.

Louisiana, (1960).

PETERS, HAROLD S. a. THOMAS D. BURLEIGH.

(Cambridge, Mass., 1951).

SIBLEY, CHARLES a. JON E. aHLQUIST.

New Haven, London, (1990).

AUSTIN, OLIVER L. a. NAGAHISA KURODA.

Cambridge, Mass., 1953.

SCHÜZ, ERNIT.

Stuttgart, 1959.

OAKES, CLIFFORD.

Edinburg, London, (1953).

CORY, CHARLES B.

Chicago, 1909.