An image above to try and show the rump of the adult male Crimson Sunbird (Aethopyga siparaja siparaja). In some text it is said to be ‘yellow’ but in the A. s. siparaja it is more ornage.
An immature male moulting into an adult (above).
The next post (above) shows and adult with some moult.
Amar-Singh HSS (Dato’ Dr) – Ipoh, Perak, Malaysia
Habitat: Fringe of city
Date: 14th November 2019
Equipment: Nikon D500 SLR with Nikon AF-S Nikkor 500mm f/5.6E PF ED VR, handheld with Rode VideoMic Pro Plus Shotgun Microphone