The Eastern Crowned Warbler (Phylloscopus coronatus) utilizes the Southeast Asian tropics exclusively as its wintering grounds. As a long-distance migrant, this species departs its East Asian breeding territories in southeastern Russia, northeastern China, Korea, and Japan starting in August. Migration proceeds southward along the East Asian–Australasian Flyway to wintering sites spanning from Sumatra through Malaysia… Continue reading Eastern Crowned Warbler utilizes Southeast Asian tropics as wintering grounds