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Riverine
ID tip
The male is uniformly chestnut above, and buff below and on the wing covert feathers. The female and juvenile are chestnut all over with white speckles above, and white streaks below. When in flight, it shows black flight feathers and tail. It is a small species at 33 to 39 cm (13 to 15 in) in length, with a short neck, longish yellow beak and yellow legs.
Text from Wikipedia, licensed CC BY-SA 4.0.
About the Von Schrenck's Bittern
Von Schrenck's bittern or Schrenck's bittern is a small bittern named after Leopold von Schrenck, the 19th-century Russian zoologist. It breeds in southeast Siberia, east China, the Korean Peninsula and Japan. It winters from the Malay Peninsula to the Greater Sunda Islands, Sulawesi and the Philippines. This species was formerly placed in the genus Ixobrychus.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
Easily confused with
Stripe-backed BitternBotaurus involucrisStripe-backed bitterns are very small, averaging from 28 to 35 cm in length.
Least BitternBotaurus exilisThe least bittern is one of the smallest herons in the world, with perhaps only the dwarf bittern and the black-backed bittern averaging smaller in length.
Black BitternBotaurus flavicollisIt is a medium sized bittern at 54–66 cm (21–26 in) in length.
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