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Vol. 68 No. 3 (1991)

Published: 1991-09-30

Research articles

Delayed autumn migration of the Swift Apus apus from Finland in 1986

H. Kolunen, V. A. Peiponen

81–92
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Enhanced predation rates on cavity bird nests at deciduous forest edges-an experimental study

U. Sandström

93–98
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Proximate factors affecting egg volume in subarctic hole-nesting passerines

A. Järvinen

99–104
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Mate guarding in forest-living, territorial Willow Tits

K. Koivula, M. Orell, S. Rytkönen

105–113
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Brief report

Diet of the Long-eared Owl Asio otus in Yugoslavia

D. Tome

114–118
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Breeding raptors and owls at Halinga, SW Estonia, in 1978–1989

E. Lelov

119–122
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The response of northern taiga birds to storm disturbance in the Koilliskaira National Park, Finnish Lapland

R. Virkkala, M. Heinonen, P. Routasuo

123–126
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Breeding biology of the Wood Sandpiper Tringa glareola in eastern Finnish Lapland

E. Pulliainen, L. Saari

127–128
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