This one is going to be a long shot - in 2004 I went to a small shop on Jl. Padma Utara (across from where the fairy shop and Buddha Face is now)... they had open cages out the front with pigeons that they used to feed (the pigeons were wild, but lived in the cages by choice). They sold carved jade jewellery and ornaments etc.
I would love to get back in touch with the owners, if anyone knows where they might be now?
Thanks!!!