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They favor deep, fast-flowing rivers with relatively clear water, high banks, deep pools, and sandbanks for basking and nesting. They rarely venture more than a few feet away from the water.
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The last populations of Tutong are found in India, Indonesia, Bangaladesh, and Malaysia. It is extinct in its former range of Thailand, Myanmar, Vietnam, and Singapore.
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Red-billed Leiothrix are native to Southern Asia and are now found on the Hawaiian Islands. These birds were first introduced to Kauai in 1918.