Here's some thoughts.....
If the soil is bare, it may be too compacted. And it may be quite nutrient poor. If that's the case and the
land were mine, I'd lay down 2 inches of compost or manure then use a shovel or fork to flip the top 5-6 inches of soil over. I'd use the tool to break up the soil clods and mix the compost/manure into it. Now if I didn't have compost or manure to use, I would still break up the top 6 inches of soil before I tried planting into it. I would start out by planting some quick growing annuals...radishes, beets, chard, lettuces, assorted greens......or I could plant oats or wheat. Id plant fairly thickly so that the plant foliage would cover the soil, preventing bare ground from showing. And because I didn't have compost or manure for a fertilizer source, I'd make green grass tea to use to
water the plants. To make green grass tea I dump a grass catcher bag of grass clippings into a trashcan. Fill with water. Let it sit 24 hours. Remove most of the grass (use it for mulch, put it into a compost pile, or dig it into the ground). Use the water "tea" to water the plants. This is not as good as compost, but it surely helps for starters. The next day I'd go around gathering weeds, leaves, garbage, grass, etc and start a small compost pile in a
cardboard box or plastic bag with the intent of digging this material into this soil plot in 6-8 weeks after the animals has eaten off the first "crop". The first crop may not be very productive, but it's a start.
As time and materials permitted, I'd make a more balanced compost with the intent of tilling it into the poor soil areas.
After the animals have eaten off this first crop, I would dig in the "compost" I had set aside in the cardboard box or plastic bag. If the animals needed more quick food, then I'd probably plant more quick style crops. I'd repeat this until the soil was looking good and proved to have better fertility. Then I'd switch to planting perennials such as clover and grasses.
At the same time I'd try establishing some clover, lambs quarters, plantains, and grass in a few areas and see how they do. Not knowing the condition of your soil, they may or may not grow well. You might still be able to collect seed in the wild for greens that they will like, if storms and wildlife haven't beaten you too them.
My
rabbits eat primary fresh grasses with some fresh legume greens (a bit of vetch, clover, and alfalfa). They get some garden waste but not too much. They are grass eaters, by nature. And I keep a few
hay cubes in their pens for them to chew on rather than using pellets. My
chickens eat just about all garden waste plus grass clippings. In addition they get some food waste and roadkill too.