This is the video that showes Taibus falling:

5.7.2016 @ 07:01:00 Taibu was on parents’ branch, lost the balance during a wing exercise and fell down. You can hear rustle of branches for about 3-4 seconds when Taibu was on her way down. She probably ended all the way down to the ground level. Rahu(?) was on left branch and screamed loudly after Taibu’s falling. Later on, Taibu's voice can be heart from the distance. Parents flew by a couple of times at low height (07:09 -7:10).
Now Taibu has a lot of fish to eat but she needs to get somehow airborne.