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Vol. 66 No. 2 (1989)

Published: 1989-07-01

Research articles

Daylenght and time allocation in relation to reproductive effort in the Common Treecreeper Certhia familiaris

M. Kuitunen, J. Suhonen

53–61
- pdf
Sexual differences in energy allocation of Capercailie Tetrao urogallus chicks

M. Milonoff, H. Lindén

62–68
- pdf
Egg dimensions of the Great Tit Parus major in southern Finland

A. Järvinen, M. Pryl

69–74
- pdf

Brief report

Clutch size, productivity and population changes in a population of the Horned Grebe Podiceps auritus in an exposed habitat

J. Ulfvens

75–77
- pdf
Solitary pairs of Great Black-backed Gulls Larus marinus prevent strangers from mobbing a predator model at their nest site

M. Kilpi

77–79
- pdf
A "gang" brood of two Black Grouse Tetrao tetrix hens

A. Marjakangas, A. Marjakangas

79–80
- pdf

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