Weaning alexandrine is being so difficult ?

[alexone]

So, my around 8 to 9 weeks old baby Alexandrine has just fledged, he can fly well now, has got skills to land properly..
But since his first flight, he almost stopped hand feeding, and rejects all his meals, he eats lil bit of corn, peans, watel melong, tomatoes, but just a lil bit... I am really concerned that he is starving... his poops are good, behavior is good, no signs of any diseases.

I know babies act crazy at this age.. but should i be worried about him starving ?
how long can this go... should i force him lil bit to get some food in ?

Plz help

[alexone]

here is latest video of my baby https://youtu.be/dcEy8xhKE3s