Change in migration phenology and biometrics of two conspecific Sylvia species in Hungary

  title={Change in migration phenology and biometrics of two conspecific Sylvia species in Hungary},
  author={Szilvia Kov{\'a}cs and Tibor Cs{\"o}rgő and Andrea Harnos and P{\'e}ter Feh{\'e}rv{\'a}ri and Krisztina Nagy},
  journal={Journal of Ornithology},
The distribution area and the timing of migration of many bird species have recently changed, presumably due to climatic factors. In our study, we estimated the effect of climate change on migration phenology and biometrics of two sister Sylvia species: the medium-distance migrant Blackcap (Sylvia atricapilla) and the long-distance migrant Garden Warbler (Sylvia borin). We used the data of 52,440 Blackcaps and 6,943 Garden Warblers caught and ringed at the Ócsa Bird Ringing Station (47°15′N, 19… 

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