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<p>Identifying inconspicuous hybrids in the wild can be challenging and might cause a low rate of detectability for phenotypically similar species. Here, we report on a record of a hybrid between Marsh Tit (<i>Poecile palustris</i>) and Willow Tit (<i>P. montanus</i>) from Southern Norway detected using photographs, sound recordings and molecular analyses. This integrative approach allowed the sex determination of the hybrid individual and the identification of both parental species. Our record represents the first genetically confirmed evidence of hybridization between these two species in the wild.</p>

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First genetically confirmed record of a wild Marsh Tit × Willow Tit hybrid (Poecile palustris × P. montanus)

  • 期刊论文

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  • 发表日期：

    2025年8月14日

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  • Thore Koppetsch,
  • Laima Bagdonaitė,
  • Ana Teresa Capucho,
  • Bjørn Olav Tveit,
  • Arild Johnsen

摘要

Identifying inconspicuous hybrids in the wild can be challenging and might cause a low rate of detectability for phenotypically similar species. Here, we report on a record of a hybrid between Marsh Tit (Poecile palustris) and Willow Tit (P. montanus) from Southern Norway detected using photographs, sound recordings and molecular analyses. This integrative approach allowed the sex determination of the hybrid individual and the identification of both parental species. Our record represents the first genetically confirmed evidence of hybridization between these two species in the wild.