I observed 3 Buff-vented Bulbuls (Iole crypta) feeding on two types of berries (plant IDs not known). I am not sure why one bird had the crest raised (3 images below); there was no apparent danger I could see.
Amar-Singh HSS (Dato’ Dr) – Ipoh, Perak, Malaysia
Location: Perak, Malaysia
Habitat: Secondary growth adjacent to primary forest
Date: 14th December 2020
Equipment: Nikon D500 SLR with Nikon AF-S Nikkor 500mm f/5.6E PF ED VR, handheld with Rode VideoMic Pro Plus Shotgun Microphone