Schrenck's Bittern

Von Schrenck's bittern is a small bittern 33–39cm long, with a short neck, a longish yellow bill and yellow legs. The female and juvenile are chestnut all over, with white speckles above and white streaks below, and in flight it shows black flight feathers and tail (Wikipedia, general species account).

It breeds in south-east Siberia, east China, the Korean Peninsula and Japan, in China and Siberia from March to July and in Japan from May to August, and winters from the Malay Peninsula to the Greater Sunda Islands, Sulawesi and the Philippines. It breeds in reed beds and tends to emerge at dusk to forage (Wikipedia, general species account).