Ask The Experts: The Arctic Warbler Splits

Christian Perez tackles another difficult new split in the WBCP 2013 Checklist. In this article he gathers advice from experts on how to tell apart Arctic Warbler, Kamchatka Leaf Warbler and Japanese Leaf Warbler. — The Arctic Warbler Splits by Christian Perez New Splits in the WBCP 2013 Checklist Two new species appeared in the…