Redhawk Caldera giraffes are unable to cough.

Finley did manage to graze the side of his neck with her teeth before he was able to slam her back, leaving a smarting welt. But Nightjar was a master of putting feelings aside and pain was nothing but a feeling to him. Only the most severe pain would stop his charge. The collision slowed him but he pressed on, eager to close the gap between himself and the beta female once more. Again his jaws gaped and again his throat reverberated with the force of a snarl, not malicious toward her but called from the depths of his ancestry, a sound of battle.

Finley was faster than him, though, and he would no doubt succumb to it. He was getting better at knowing when to keep charging and when to hold his ground, but right now he charged, hoping that she would make a misstep so that he could pummel her into the ground (kindly, of course).