If you carefully keep your bird records by state, be aware of the location of the state line and use the appropriate eBird hotspots when you submit checklists. The Vermont-New Hampshire state line is in the Connecticut River.

Pompy Oxbow Is south of VT-132 and Kendall Station Road along US-5 in Norwich. One can park by the side of the road just north of Town Highway 99. Cross the railroad tracks to this series of planted fields between US-5 and the Connecticut River.
From Jim Block

Pompy Farm Oxbow is a recently discovered “sleeper” of a hotspot in Norwich. Comprised of a fairly narrow strip of land between US-5 and the Connecticut River, it is privately owned, with most of the acreage actively farmed by Cedar Circle Farm in East Thetford, with the north end often in corn and southern sections in various combinations of squash and potatoes. Because these agricultural fields are managed somewhat passively (though a strip is periodically mowed around its entire perimeter, which is a boon for walking and birding), many weeds are interspersed among the crops, creating a haven for sparrows, buntings, and other seed-eaters in fall and winter.

Parking is limited, but there is a narrow gravel strip along the east shoulder of US-5 at the north end of this area, just south of Pompy Farms, which is on the left (west) of US-5 as you head north. Anglers sometimes park here and access the oxbow via the railroad, fishing from shore in spring-fall and on the ice in winter. Birding access to the oxbow, adjacent river, and agricultural fields is best by crossing the railroad tracks and walking into the north end of the fields via a small gap through the sumacs (marked with blue flagging tape).

The oxbow can be a magnet for waterfowl in spring and fall, and occasionally for terns and gulls. On the increasingly rare occasions when water levels are low, look for shorebirds on exposed flats and the shoreline (Vermont’s first-ever Marbled Godwit and a Wilson’s Phalarope have been found here). There is a good vantage point at the northernmost end of the ag fields, and a spotting scope is strongly recommended. From there, a nice walking loop extends southward between the fields and the narrow brushy margin of the river, several hundred meters to its southern terminus. There are several spots from which to observe the river–with another backwater between a long cattail peninsula and the Vermont shoreline that often harbors good birds, but highlights most often involve landbirds along the brushy edges, in the scattered emergent deciduous trees, and in the agricultural fields themselves. Before these fields are harvested and mowed in autumn (and Cedar Circle has graciously left a weedy strip specifically for birders during recent years), they can be full of sparrows of all sorts. Dickcissels have appeared on a few occasions, Vesper Sparrows are regular, astonishing numbers of Lincoln’s and Swamp sparrows often occur, and a Nelson’s Sparrow was found in 2020. Flycatchers and warblers can abound during migration, Bobolinks sometimes mass up at the south end, and redpolls flock to the unmowed weedy strips during irruption years. This was one of Vermont’s most reliable sites to observe Hoary Redpolls during the 2020-21 winter.

If you bird the Pompy Farms Oxbow site, please be respectful of the farm fields and stay on the grassy mowed sections. Also, be exceedingly careful when crossing the railroad tracks!