Rabbit scrapings are an abnormal ground condition and so are covered by Rule 25, which gives relief if the condition interferes with your stance or stroke either on or off the green.  In addition, if your ball lies on the green you may obtain relief for intervention on the line of your putt.  

The mesh covering damage may be treated as an Immovable Obstruction.  Relief is available under the applicable rule only if it interferes with your stance or stroke.  There is no relief for intervention on your line if your ball is off the green.

Graham Molloy
Course Convenor