Lollie, thanks for the question. Unfortunatley, I am in the pest control field and ground hogs fall under the wildlife control field in nc. A great place to find a local wildlife control agent is http://www.ncwildlife.org/fs_index_06_coexist.htm. Good luck with controlling those ground hogs!
Burns, back to the first question...is that a mistake often made by residents? Thinking that a wildlife issue is a pest control issue? How do you determine who to call?
Yes it is. Some pest companies have wildlife agents on staff but not a majority of them. If the problem is with critters larger than a mouse or a rat, then most likley you will need a wildlife professional.