SEEN - SE European Bird Migration Network
Movements of Bearded Tits (Panurus biarmicus) in the Czech Republic and Slovakia
David Horak
Department of Zoology, Faculty of Science, Charles University, Vinicna 7, CZ-128 44, Prague, Czech Republic

A total of 360 ringing recoveries of Bearded Tits (Panurus biarmicus) ringed or recovered on the territory of the Czech Republic and Slovakia during 1934–2001 were analysed with respect to their natal philopatry, site fidelity, movements, age and mate fidelity. Migration system of the Bearded Tit has a complicated pattern, some individuals are sedentary, others migrate to winter in other areas. Several recoveries confirm breeding and wintering site fidelity. Some birds, however, changed their breeding grounds. The Czech Republic and Slovakia are used as wintering grounds by Bearded Tits both from the north (Germany, Poland) and the south (Hungary). The oldest male was controlled at its breeding site after six years. A couple of recoveries document mate fidelity in the Bearded Tit not only in the subsequent breeding seasons, but also in the non-breeding period and during movements. Mate fidelity could be an advantageous adaptation to colonisation of new breeding sites. The results of the analysis of ringing recoveries show that the subspecies biarmicus and russicus come into contact in Central Europe.
Created by Pronetix 2006