Hen Harrier

Scientific Name: Circus cyaneus
Malay Name: Helang-Sawah Kelabu Biasa
Chinese Name: 白尾鹞

Range:
Found from temperate Europe, Central Asia, Siberia to northern China and winters south to northern Africa, Middle-east, northern Indian subcontinent, southern China, Japan, Korea, Indochina and the Thai-Malay Peninsula

Taxonomy:
Monotypic

Size: 44-52 cm

Identification: Male has grey head, breast and upperparts with contrasting white lower breast and undertail coverts, black outer primaries and dark trailing edge. Female resembles Eastern Marsh Harrier but underwing has three obvious dark bands with the one at the trailing edge the broadest. Juvenile resembles female but has rustier underparts and darker secondaries at the underwing.

Similar looking species: Pied Harrier, Eastern Marsh Harrier

Habitat: Open country, reclaimed land, grasslands and marshes.

Behaviour/Ecology: 

Local Status: Very rare vagrant

Conservation Status: Least Concern (IUCN 3.1)

Location: Only 3 confirmed records: a male specimen collected near Paya Lebar Airport in January 1948, a male seen at Jurong prawn ponds in November 1963 and a bird near Poyan Reservoir in November 1982.

Photos:

External Links:
Conservation Status: IUCN Red List Page
Photos: Oriental Bird Images
Sound Recordings: xeno-canto Link
Wikipedia Entry: Wikipedia Link

Reference:
Craig Robson (2011) A Field Guide to the Birds of South-East Asia
Allen Jeyarajasingam & Alan Pearson (2012) A Field Guide to the Birds of Peninsular Malaysia and Singapore
Lim Kim Seng (2009) The Avifauna of Singapore