Sterna albifrons 22-24cm
Siriya Aalaa in Tamil (சிறிய ஆலா)
Resident. breeds locally, widespread in non breeding season. Fast flight with rapid wingbeats, long bill, and narrow based wings. Adult breeding has white forehead and black tipped yellow bill. Adult non breeding and immature have blackish bill, and black mask and nape band. Juvenile has dark subterminal marks to upperpart feathers. Mainly freshwater lakes and rivers, also coastal waters.
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