Wet lands - Ideas for land on flood zone

[Aj Malempati]

Hello BP

There is land for sale, before I approach to purchase it, which is a little over 5.5 acres zoned Agriculture, almost all of it is wet land in flood zone with flat topo. 

What are some of the ideas or uses of that land, obviously if I can get it for a cheap price?
My thoughts are chicken and small animals, not sure if we can place a barn on the land or construct anything.

Thank you for your thoughts!