I find that when trying to create a flying creature, you need to have 2 wings for flying (obviously) but that gives you no way to collect berries. Yes the bird beak gives 1 collecting, but frankly it's not that great and while going to sleepy reeds with a bat creature can give a surplus of food from the fly swarms when combined with the stinky tail, that and termites appear to be the only efficient way of gathering food as a flying creature.
That's why I'm suggesting a new tail gene: The monkey tail.
Stats:
Collecting 2
It'd be unlocked by doing something in the jungle, maybe killing an ape or all 3 apes, something difficult as 2 collecting on a non hand slot is very powerful.