10th July 2010, Kemensah, Selangor.
The same couple that lost their chick were incubating a new egg. To answer my question, they did not reuse the old nest ( no longer there) but had chosen a different tree to build their nest. Their previous chick died on 10th June 2010 and I suspect that they have been brooding the new egg for a couple of weeks now.
This was what the White-throated Kingfisher was eyeing. She was later chased away by one of the treeswifts ever so wary of intruders.
Unlike the previous round, I will only be making weekly checks on their progress.