Tell them, there was not any wetlands like the present one (a pond!) in the past. There should be a natural stream and some abandoned paddy field (which has become marshy habitats, but not a pond). What "someone" has done, the now so-called regenerated "wetland", is a complete ecological destruction.
Please rehabitilate the landscape back to its natural form. The one now present at the site is absolutely an ecological disaster, not a so-called habitat regeneration.
What they need to regenerate is the natural stream and the marshy condition, not a pond and the dry, golf course-like grassland!