When submitting eBird observations at Heald Tract, it is most helpful to start a new checklist for each hotspot in the area. Use the general hotspot when you have a checklist that includes multiple locations or if no other hotspot or personal location is appropriate for your sightings.

Trails that skirt the shores of Heald and Castor Ponds offer views of beaver lodges. The orchard and fields offer early succession habitats for foxes, hares, and different species of warblers. You’ll also find great blue herons in the rookery to the north, plus belted kingfisher, Canada geese, wood ducks, beavers, deer, fox, squirrels, moose, and otter. Look for orchard blossoms and vernal pools in spring, mountain laurel blooming in early summer, a carpet of water lilies on King Brook Reservoir in late summer, and blooming pink bladderwort on Camp Pond in late summer.