Absolutely! You can develop wildlife habitat anywhere that you can provide food, water, shelter, and space. You could do a lot with 140 acres. Having the hedgerow and nearby land in a conservation easement will help attract wildlife to your property. Not knowing what the layout of your land is like, or which species of wildlife you wish to attract, I can't provide specific recommendations for plant species to put in. But I would definitely recommend using plants native to your area of North Carolina. If you call an Extension wildlife specialist in your state or contact a wildlife biologist with the North Carolina Department of Environment and Natural Resources they will be able to provide you with advice on how best to establish habitat on your land.
A book I recommend to people living in Illinois is called "Creating Habitats and Homes for Illinois Wildlife". A website that provides a good introduction can be found at:http://dnr.state.il.us/OREP/pfc/guide/introduction/intro.htm
For information in North Carolina I would start with some of the resources found at: http://www.ces.ncsu.edu/nreos/wild/wildlife/habitat/index.html
Good luck with developing wildlife habitat on your land. It is hard work, but definitely worth the effort.
