Yes, the 2x2 with 16 double door frames works! But heres how to easily proceeds:

1 - Stack 30 feathers outside the trap

2 - Runs to incidente the trap, go to the middle of it and get down (not completly, just the "sit")

3 - Keep the eye on Yi's wings, they will glow in red at some point, that means it is ready for the special atack

4 - Yi will fly agressivly towards you, but will be blocked by the fence, bomb it in this moment with Y seed (not the wil one, the crop) and feed it with the toxin.

5 - LEAVE the trap and be arround the Dino until it flies again. Repeat maintaining the 30 or more feathers status.

PERCICLES, AKATSUKI, ABB 5736