Bewick’s Swan Age Assessment

By Wim Tijsen and Kees Koffijberg

The next international age assessment for the NW European Bewick’s Swan population will be undertaken on 12/13 December 2020. We hope that all countries, coordinators and observers will continue their contribution to this long term study to ‘keep a finger on the pulse’ of the Bewick’s Swan population. This count is part of the long-term monitoring scheme coordinated by the Swan Specialist Group, in order to assess annual productivity in the species. In 2019, the 38th age count was held in the weekend of 14-15 December. Data were received from nine countries and pointed at 6.6% juveniles: slightly lower than in 2018 and below the level that would be required to compensate for annual mortality rates.


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