Common resident bird of almost all fresh water bodies throughout
the island while getting less common in higher hills. Lives in pairs and each
pair occupy a demarcated territory which they guard from others of its own
species. Breed during first half of the
year (February to June) in a burrow dug out in a bank of a stream, tank or
sometime in a side of manmade well. Male birds can be distinguished from female
by having all black bill while females and immatures have reddish lower mandible
base.
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