First evidence of phenological change in a transcontinental migrant overwintering in the Indian sub-continent: the Red-breasted Flycatcher Ficedula parva

We analysed data on the Red-breasted Flycatcher Ficedula parva collected in old- growth, oak-hornbeam stands in the primeval Forest, Poland during 1973- 2002. In this period, the Red-breasted Flycatcher’s return to its breeding sites became sig nificantly earlier whilst population size did not change significantly. We show that population size did not influence arrival time in Bia