It was large and heavy set, dwarfing a solitary Sooty-headed Bulbul that sat on a nearby branch for a brief time - I would estimate 45-60cm long (including its long tail). It sat twice in very thick areas, giving me a long time to scope it with binoculars. The thick areas it sat in meant it was difficult to ever see the whole bird, and I never saw the head. Its back was dark brown with a few random, (appearing) feather tips being a cream colour. When I Googled images of Asian Koel and Greater Coucal immature, both had many more light spots that this bird. What I thought would be distinctive, but have not been able to find was the wing. The upper wing had a blackish-blue area near the shoulder, and the cream feather-tips formed two (imperfect) rings below this coloured area, that circled the lower half of it. Any help greatly appreciated with this one. Will cross-post on Birdforum as well, in hope of getting an ID.
Apart from this, in my brief stay, I saw
- Bulbul, Sooty headed (1)
- Flycatcher, Asian briown (at least 2)
- Flycatcher, Dark-sided (1)
- Flycatcher, Hainan Blue (at last 2)
- Flycatcher, Yellow-rumped (at least 4)
- White-eye, Japanese (lots)
I also saw a man with an air rifle, trying to shoot birds but thankfully, his aim sucked. I heard quite a few calls I have not heard in Hanoi before as well.