Olive-backed Sunbird , female (Nectarinia jugularis) – Kelicap Bukit – foraging at Zigzag flower (Pedilanthus tithymaloides)
The first record of this species at my backyard. The easy recognize feature is the iris colour – BLACK in the case. The most common Sunbird I found was the Brown-throated.
Here the comparative chart to differentiated the various species of Sunbird
Chart taken from he Singapore National Parks on conservation Newsletter. HERE