Scientific Name: Phylloscopus borealis
Malay Name: Cekup-Daun Artik
Chinese Name: 极北柳莺
Found from northern Eurasia, Siberia, northeast China, Japan to Alaska and winters to Southeast Asia
Size: 12.5-13 cm
Adult has long yellowish-white supercilium, olive-green crown and upperparts with two narrow wing bars (indistinct when worn), whitish grey underparts, dark tip at lower mandible and yellowish-orange legs.
Habitat: Forest, forest edge, wooded areas, mangroves, parks and gardens.
Behaviour/Ecology: Frequents the canopy.
Local Status: Common migrant
Conservation Status: Least Concern (BirdLife International 2016)
Location: Any suitable patch of habitat like Central Catchment Forest, Singapore Botanic Gardens, Pasir Ris Park, Sungei Buloh Wetland Reserve, etc.
BirdLife International. (2016). Phylloscopus borealis. The IUCN Red List of Threatened Species 2016. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T103845882A87673832.en. Accessed on 19 December 2021
Jeyarajasingam, A., & Pearson, A. (2012). A Field Guide to the Birds of Peninsular Malaysia and Singapore. Oxford University Press.
Robson, C. (2014). Field guide to the birds of South-East Asia (Second Edition). Bloomsbury Publishing, London.