Deer
Deer comprise a family of hoofed ruminant mammals found widely across the world.
#Human relations
People of the Fifth World hunt deer for their meat (venison), skins (useful in making soft clothing), and antlers (often used as knife handles).
#Specialization
A community specializing in relationship with deer more likely than not live in nomadic hunter-gatherer bands, following herds of deer as they migrate throughout the year. They may live in more marginal lands that make horticulture impractical, such as rocky, hilly regions or areas close to the poles that lay under ice or permafrost until relatively recently.
If the community lives in a more lush environment, they may practice controlled burns of portions of forest in order to create open, grassy habitats for the deer. They may think of this as payment in exchange for the deer their hunters take for food.
Part of the community's wizard's responsibilities will likely include negotiating with the Keeper of the Game for how many deer the community can take per year. If they take even one more than the agreed-upon number, the Keeper of the Game will demand a steep price -- or even a sacrifice.