I was enjoying a small flock of Black-headed Bulbuls (Pycnonotus atriceps) wander through the canopy feeding when they led me to a pair of Green Ioras collecting nesting material. They were approximately 10 meters up stripping fibre from the bark of a dead branch. Both male and female were equally involved (watched 3 episodes). I also saw them collect cobwebs.
When they left I managed to follow them in the canopy and find their nest. It was located on the outer branch of a tall tree on a slope of a hill, approximately 12 meters high. The nest is close to completion and is a small cup, built into 4 small branches, with a small downwards extension, very much like some Fantails (this Post). Other have described a neat cup (Wells 2007; one image on OBI). In addition to adding material they also would sit in the cup to shape it. - Amar