Answer: Unfortunately rabbits can be very destructive, damaging woody plants in winter and eating leafy plants in summer. You might be able to deter them using one of the repellent sprays labeled for rabbits or possibly using a pepper/wax spray. Be sure to apply and reapply as directed on the label. Or, you could consider fencing them out. Here is more information about rabbits you may find helpful. You may need to cut and paste the complete url into your browser to make it work correctly.
If your yard is being flooded, you may want to look into the overall drainage plan for the property. Sometimes this type of problem can be solved fairly simply (and inexpensively) by redirecting runoff using a swale, for instance. In other cases more elaborate measures are needed such as a drain system. Since water will run downhill, you will have an ongoing problem unless changes are made at some point in the runoff pattern. A professionally trained and degreed landscape architect or engineer with training in drainage issues should be able to consult with you on site to help you get an idea of your options.
Q&A Library Searching Tips