Crowley wasn't just going to let it go at that. He had prepared himself to see birds explode and exploding birds he wanted to see. "Give me a minute," he said and removed his sunglasses. Narrowing his serpentine eyes, he focused on one of the vomiting birds.
He visualized it, the bird puffing up and exploding in a shower of feathers. A piff. That's all it would be. Piff.
It wouldn't take much energy either and he really, really wanted something to explode.