CONTENTS:

Editorial
(page 4)

W. KANIA
Safety of catching adult European birds at the nest. Ringers’ opinions
(page 5)

P. BUSSE
Migratory behaviour of Blackcaps (Sylvia atricapilla) wintering in Britain and Ireland: contradictory hypotheses
(page 51)

T. BUCZEK
Wintering White-tailed Eagles (Haliaeetus albicilla) in Poland
(page 77)

Methods

P. BUSSE
Elements needed for a construction of a population dynamics model for monitoring purposes
(page 89)

Short notes

Information

Books