
Sunda Teal (Bebek cokelat) - Anas gibberifrons
This is part of a population of ducks living in the Lake Linow. This is a volcanic lake close to Tomohon. Quoting Wikipedia: The word "Linow" derives from the Minahasa word for "water gathering place".
It is amazing how these ducks are adapted to the waters of this lake which in fact have high amounts of sulfur and has several boiling points. Moreover, several hydrothermal vents spew hot gas from the edges and depths of the lake.

The Sunda teal , also known as the Bebek cokelat, is a dabbling duck found in open wetlands in Indonesia. The species formerly included the Andaman teal ''Anas albogularis'' and the grey teal, ''Anas gracilis'' as subspecies, but is currently considered monotypic.
A molecular phylogentic study published in 2009 that compared mitochondrial DNA sequences from ducks, geese and swans in the family Anatidae found that the Sunda teal is a sister species to the chestnut teal that is found in.. more
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