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Asian Emerald Cuckoo – immature males

on 6th February 2018

CuckooAE-imm m [AmarSingh]

“I spotted two immature male Asian Emerald Cuckoos (Chrysococcyx maculatus) today (above). Both were self-feeding with a Plaintive Cuckoo (Cacomantis merulinus threnodes) also present. They were busy picking caterpillars off Spondias dulcis (syn. Spondias cytherea) trees in an abandoned, overgrown fruit farm (this plant is commonly known as Ambarella and locally as Kedondong) (below).

CuckooAE-imm m [AmarSingh]

“Caterpillars were branch swiped before being consumed. I watched for ~ 30 minutes to allow them to get used to me. They consumed a number of prey but also took time to just sit immobile; they are described as ‘sluggish’.

CuckooAE-imm m [AmarSingh]

“Cuckoos of the World by Johannes Erritzøe, Clive F. Mann, Frederik P. Brammer and Richard A. Fuller, Helm 2012 describes juveniles as having either a rufous or green head. Here the presence of a red iris and eye-rim with green on the back of the head point to immature males. Post 1-4 is of one of the 2 birds (younger of the two)”

CuckooAE-imm m [AmarSingh]

Dato’ Dr Amar-Singh HSS
Ipoh, Perak, Malaysia
30th January 2018

Location: Ipoh, Perak, Malaysia
Habitat: Secondary growth at city fringe

If you like this post please tap on the Like button at the left bottom of page. Any views and opinions expressed in this article are solely those of the authors/contributors, and are not endorsed by the Lee Kong Chian Natural History Museum (LKCNHM, NUS) or its affiliated institutions. Readers are encouraged to use their discretion before making any decisions or judgements based on the information presented.

YC Wee

Dr Wee played a significant role as a green advocate in Singapore through his extensive involvement in various organizations and committees: as Secretary and Chairman for the Malayan Nature Society (Singapore Branch), and with the Nature Society (Singapore) as founding President (1978-1995). He has also served in the Nature Reserve Board (1987-1989), Nature Reserves Committee (1990-1996), National Council on the Environment/Singapore Environment Council (1992-1996), Work-Group on Nature Conservation (1992) and Inter-Varsity Council on the Environment (1995-1997). He is Patron of the Singapore Gardening Society and was appointed Honorary Museum Associate of the Lee Kong Chian Natural History Museum (LKCNHM) in 2012. In 2005, Dr Wee started the Bird Ecology Study Group. With more than 6,000 entries, the website has become a valuable resource consulted by students, birdwatchers and researchers locally and internationally. The views and opinions expressed in this article are his own, and do not represent those of LKCNHM, the National University of Singapore or its affiliated institutions.

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