Aha, I see. Anyways up to V decide does she use a hawk or will she make her own heraldry; she could make a cat :P. But if asking me, I would be very much liking if her own house heraldry has (or includes) a wolf. Black or white, either color is fine. Or if want go creative the symbol could be a wolf which holds sword in it's maw (or go more elaborate; add hawk perching on said sword blade or perched on wolf's shoulder/back).