Asian Fairy Bluebirds (Irena puella malayensis) have a wider range of calls. This adult male was singing high in the canopy for an extended period. It was a collection of whistles and ‘whit’s and other notes strung together almost continually. Many occurring at high frequency.
A call recording is located here: https://www.xeno-canto.org/503199. A sonogram and wave of a short segment is given above.
I watched them feed and Ficus fruit was crushed before swallowing (see composite below).
Amar-Singh HSS (Dato’ Dr)
Ipoh, Perak, Malaysia
Location: Kledang-Sayong Forest Reserve, Ipoh, Perak, Malaysia
Habitat: Trail along primary jungle
Date: 15th October 2019
Equipment: Nikon D500 SLR with Nikon AF-S Nikkor 500mm f/5.6E PF ED VR, handheld