Gg zhang liang generale del popolo

The info is wrong. They eat anything even accessories and give you an accessories with the same rarity back.
So drop a 4 star and get a 4 star back.

They can be interacted with again if you reload the mission.

In one of the last submisions I give accesorie rare 4 and I recived a rare 5, to take in consideration.

I noticed if you feed them with 9 Jewel Fragments, they will ALWAYS give you a 4 star accessory, and a 5 star one in NG+

No idea which ones I've found and which ones I've missed. Will have to re-visit all levels where they are to track them all down. Same deal for the golden cicada shells.

Good area to farm is in search of the immortal wizard. Rest at the flag before the demon then drop, don't like your item return to title screen then continue. Reloads same flag with fresh panda

And I also noticed dropping specific armours and weapons will drop you back specific accessory types. My eg. dropping a 4 star nameless garb +8 always seems to drop an imperial seal accessory. Suggests specific item drop lists.

it's annoying not being able to keep track of whether all bears were fed from the level select screen. Nor does the relevant NPC ever give you any hints about remaining bears.
There's little minor "anti-QOL" issues like this throughout Wo Long. Hopefully they'll be remedied in a later patch like what happened with Nioh.