Greetings from the field!
You may have been wandering around in Corn Creek recently and noticed a field that has a bunch of hay bales on it. This work was done as a management tactic to promote plant and grass diversity and reduce the thick stand of reed canary grass in the area.
Reed canary grass tends to take over the landscape if there’s a shift in the disturbance patterns, or lack of frequent disturbance, eg. grassfires or flooding. This reduces the natural plant and grass diversity which limits the wildlife species that can utilize the landscape. It’s also a rather poor forage for grazers such as elk and whitetail deer, especially later in the season when it’s tall, tough and fibrous.
Cutting the grass short and bailing all the litter material on top replicates natural disturbance. This reduces the competitive advantage reed canary grass has over other plant species in these new conditions. It provides more light penetration to the ground, less debris to grow through and reduced nutrient over-inputs which in turn allows a broader range of species to grow. Also, the young reed canary grass shoots, when kept short, are more desirable to those grazing ungulates! 
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