Lim Sheau Torng wrote about the different stages of moulting in this weaver species. Read https://besgroup.org/2013/03/11/golden-backed-weaver-stages-of-moulting/. Morten Strange and Ng Bee Choo wrote about a male Golden-backed weaver building a nest in this post.
This African bird is believed to have arrived in Singapore in 2011 as bird cage escapees. They have established themselves successfully in Kranji Marshes, Neo Tiew Harvest Lane and Lorong Halus.