Campbell Flat in Norwich can be filled with birds or fairly quiet. In spring one might find wood ducks in the flooded fields. Nesting Kestrels are common. Campbell Flat has been visited by rarities such as a Little Blue Heron and a Western Kingbird.
I normally combine Campbell Flat with a visit to Pompy Oxbow, Kendal Station, and/or Old Bridge Road, all close by in Norwich. Find it along Route 132 less than a mile from Route 5.
You are welcome to walk around the cornfield.
There is a small area to the left as you descend the hill on the road. It is worth checking out, in addition to the sometimes-flooded fields and the corn field.