Carry-Over Effects of Climate Variability at Breeding and Non-Breeding Grounds on Spring Migration in the European Wren <i>Troglodytes troglodytes</i> at the Baltic Coast.

The winter and spring NAO, which showed large annual changes, but no long-term trends ( Figure A1 ), may have contributed to the large variation, and thus a weak trend in the median date of passage at Bukowo-Kopań. 5.

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