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SNOWY OWLS WHO ARE THEY? |
FORD,ANSLEY WATSON a.o. |
€ 15.00 |
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SO CRANES MAY DANCE a rescue from the brink of extinction |
KATZ,BARBARA |
€ 10.00 |
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SOBRE MIGRACION Y AVIFAUNA EN MALLORCA, PRIMAVERA 1963 |
BLONDEL,J. / VIELLIARD,J. |
€ 5.00 |
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SOCIAAL GEDRAG BIJ DE DIEREN ( Aula pocket 378 ) |
TINBERGEN,NICO |
€ 5.00 |
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SOCIAL BEHAVIOUR IN BIRDS AND MAMMALS essays on the social ethology of animals and man |
CROOK,J.H. a.o. |
€ 20.00 |
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SOME ADAPTATIONS OF MARSH-NESTING BLACKBIRDS |
ORIANS, G.H. |
€ 10.00 |
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SOME BIRDS OF THE CAPE |
WINTERBOTTOM,J.M. / UYS,C.J. |
€ 10.00 |
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SOME COMMON BIRDS OF WEST AFRICA |
FAIRBAIRN,W.A. |
€ 10.00 |
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SOME DATA ON THE STATUS OF THE SPOONBILL, PLATALEA LEUCORODIA L., IN EUROPE, ESPECIALLY IN THE NETHERLANDS |
BROUWER,G.A. |
€ 5.00 |
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SOME DATA ON THE STATUS OF THE SPOONBILL, PLATALEA LEUCORODIA L., IN EUROPE, ESPECIALLY IN THE NETHERLANDS Zoologische mededelingen (Deel XXXIX) |
BROUWER,G.A. |
€ 5.00 |
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SOME EXPERIMENTS ON THE SENCE OF SMELL IN BIRDS studied by the method of conditioned reflexies |
WALTER,W.G. |
€ 10.00 |
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SOME EXPERIMENTS ON THE SENSE OF SMELL IN BIRDS STUDIED BY THE METHOD OF CONDITIONED REFLEXES thesis; Extrait des Archives Néerlandaises de Physiologie de l'homme et de animaux |
WALTER,W.G. |
€ 12.00 |
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SOME GAME BIRDS OF WEST AFRICA |
FAIRBAIRN,WILLIAM ALEXANDER |
€ 10.00 |
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SOME INDIAN FRIENDS AND ACQUAINTANCES |
CINNINGHAM,D.D. |
€ 12.00 |
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SOME OBSERVATIONS ON MAMMALS, BIRDS AND REPTILS IN THE LOWER VALLEY OF THE INDUS AND UPPER VALLEY OF THE BRAHMAPTURA |
PILLERI,G. a.o. |
€ 10.00 |
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SOME OBSERVATIONS ON THE AVIFAUNA OF WEST-SPITSBERGEN |
DHONDT,A.A. a.o. |
€ 10.00 |
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SOME PROTECTED BIRDS OF THE CAPE PROVINCE/SOMMIGE BESKERMDE VOËLS VAN KAAPLAND |
HEY,D. |
€ 5.00 |
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SOME REMARKABLE NEW BIRDS FROM DYAUL ISLAND. BISMARCK ARCHIPELAGO |
SALOMONSEN,FINN |
€ 25.00 |
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SONG AND GARDEN BIRDS OF NORTH AMERICA vol. 1 & 2 |
WETMORE,ALEXANDER |
€ 15.00 |
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SONG BIRDS OF THE WORLD |
AUSTIN,O.L. |
€ 5.00 |
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SONG OF WILD BIRDS |
HUXLEY,JULIAN S. |
€ 20.00 |
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