They appeared to be does. One was seen in a snowfield in Toyotomi town, grazing on what was initially a round hay bale. The hay was strewn about after being eaten almost daily by animals.
In 2009, they tried to do it in a city called Snowfield (but it didn't go as well as planned, allowing strange summons to start happening). In this scenario, the (London-based) Mage's Association ...