C297 There's Always a Bird in the Bag When It Comes to Things
Perhaps because most mutant beast's speed was so fast, when the last bit of deep blue in the sky completely disappeared, that black mass of mutant bird had already flown to the sky above their heads. The survivors in the group could even very clearly hear the sound of their wings flapping in the air.
Perhaps it was the fire and lightning that had the effect of intimidating the mutated beasts