For more than 100 years, Station 43 has been recognized as one of the most important habitats for birds in the Hartford area and is still acknowledged today as an important site by the ornithological community. The marsh and the surrounding area serve as one of only a small handful of breeding areas for several listed species, including Least Bittern. American Bittern, Blue-winged Teal, and King Rail may also nest in the marsh. Station 43 is of the few nesting habitats remaining in the Hartford area for Soras, Virginia Rails, and Marsh Wrens, and one of the most significant stopovers and wintering areas in Connecticut for Rusty Blackbirds. It is also an important stopover point for birds migrating along the Connecticut River corridor, including waterfowl and songbirds (notably sparrows), and receives significant usage by raptors in the winter months. The nearby agricultural fields and grasslands are also significant habitats. Bald Eagles use the area in migration and the winter and may nest within foraging distance.

Station 43 comprises 9.1 acres of shallow pond and marsh, bordered by over 400 acres of wetland, meadows, and active farmland on our south, west, and north boundaries, and by 100 acres of wooded higher ground to the east.

Located below the 20-foot elevation contour in the Connecticut River flood plain in South Windsor, this is one of the most productive inland bird-watching sites in Connecticut and is a Special Focus Area of the Silvio Conte National Fish and Wildlife Refuge. Ten endangered, nine threatened, and nine special concern bird species have been reported here, among 229 total bird species.

The trail entrance to Station 43 is directly opposite where Newberry Road intersects Main Street in South Windsor. Park on Main Street (please don't block any driveways or mailboxes), and walk west from the intersection on what starts as a rutted driveway and quickly turns into a trail.  Follow the trail out to the pond and observation deck.  The wildlife sanctuary property ends with the observation deck. Wearing boots and bug repellent is highly recommended. Many areas are wet and muddy in most seasons.