LARIDAE

WHITE-WINGED TERN 

Location : Malim Nawar, Perak
Date : ‎‎‎4 December 2020

20–24 cm Adult non-breeding/first winter: Smaller/finer-billed than Whiskered; roundish ear-patch (‘headphones’). In flight, white rump and uppertail-coverts, darker outer primaries, dark bands across lesser coverts/secondaries.Adult breeding: Black head/body/underwing-coverts, white upperwing-coverts, rump and tail-coverts.Adult non-breeding/breeding (transitional): Patchy plumage.Juvenile: Like Whiskered but white rump/uppertail-coverts, darker/more uniform ‘saddle’, darker lesser coverts/secondaries. VOICE Harsh high kreek and harsh creaking kesch in flight. HABITAT Coasts, coastal pools, marshes, wet rice paddies, lakes, large rivers; up to 450 m. RANGE Sc/lc PM S,E Myanmar, NW,W(coastal),C,S Thailand, Pen Malaysia, Singapore, Cambodia, Laos, C,S Annam, Cochinchina. Lo WV S Myanmar, C,S Thailand, Pen Malaysia, Singapore. Rc in summer S Thailand, Pen Malaysia, Singapore.