[he scowls when she yells at him, because maybe his misses aren't helping, but neither is her yelling! it wasn't a bad idea, the bird's wings just got in the flappy way.] Stop losing your weapons.

[cassian catches sight of the third bird lurking even before jyn points it out, his weapon trained on it as she scurries in carefully to grab her truncheons. he can't hit it through the trees and wall, but he keeps it aimed in its direction anyway.]

We'll have to draw it out ourselves. [his brain runs quickly through a few scenarios.] Two choices.

I shoot at it and get its attention. Once it comes at me, you strike it from behind - but it leaves the risk of the bird flying too high to reach. The second is you approach the wall to spook it out leaving me to kill it, but you will likely need to get close. [he doesn't like that one as much.]