Even if it can't, I'd still be worried. Monsters' mouths in my world tend to be very dangerous places to be near, on account of more than just the teeth.

[He eyes the vultures, troubled, and skips over a crack in the rock as he just walks on up like this is a horizontal surface.]

Let's just shoot down what vultures we can and go before we find out for sure. All we really need is the meat.