What distance can eastern Siberian P. t. yakutensis cover annually?
Answer
Nearly 12,000 kilometres
The Willow Warbler is renowned for undertaking exceptionally long annual migrations, making it a subject of significant ecological interest due to its small size. Specifically, the eastern Siberian breeders, identified by the subspecies designation *P. t. yakutensis*, undertake one of the longest journeys. These individuals travel an astonishing distance, estimated at nearly 12,000 kilometres (which is equivalent to about 7,500 miles, though 12,000 km is the metric measure provided). This migratory path follows the Asian–East African Flyway, connecting their breeding grounds in Eastern Siberia with wintering sites located deep in Eastern and Southern Africa.
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