Two siblings are still depending food from parents. The avian family spent most of their time either around their ‘dining’ hall or outside the parking area near the toilet. Both juveniles are skillful on flight. When they are flying, it is hard to differentiate whether it is an adult or juv.
This morning saw one parent taking his/her bath near the parking lot. Juv. was standing near parent begging for more food.
Post fledging size and plumage look quite similar to adult. Observed juv. is fanning its tail quite often when begging for food.
In the night the avian family will go back to the same roosting site to sleep. I went back to check their roosting site and saw patches of dropping and pellets on the floor.
Attach few images for your viewing pleasure.
connie khoo siew yoong 
wah lao, so cute.the fledgling.
the beak is very yellow as compared to the adult.
sorry, the beak is not very yellow.