Most of the liver we eat comes from wild game that I bring home. Deer, Elk, Duck, and Goose liver are all some of my favorites. The Deer and Elk liver is cooked as most on here have mentioned. We like it dredged in flour seasoned with poultry seasoning, fried and served with a sweet milk gravy.
The livers from the ducks and geese I make into a Pate'. Rinse and chop 1/2 pound of livers into 1/2 inch pieces, and then rinse and soak in cold fresh water (change the water 3-4 times in a 20 minute period). Drain the livers well, and saute' in butter with 2 minced shallots. At this point, add salt and white pepper (1/4 teaspoon of each). When the livers are browned, deglaze with a shot of brandy. After the brandy has reduced by 1/2, remove from heat, and allow to cool for 15 minutes. Break up a softened cube of butter into a blender, add the livers (making sure to scrape everything out of the pan), and puree until smooth. When it is completely pureed, add 2 teaspoons of brandy, and blend to incorporate.
Pack this into small serving sized ramekins, and chill for 1 hour. Serve at just below room temp.