Ruffed grouse and woodcock can be found on the northern quarter of the property around old field edges, apple trees, and alder stands. Many species of warblers common to coniferous forests and field edges can be found at Calendar Brook.

Calendar Brook Wildlife Management Area (WMA) is a 413-acre parcel of land owned by the State of Vermont and managed by the Vermont Fish and Wildlife Department. The property is located in the town of Sutton in Caledonia County, Vermont, just west of the village of Sutton near the Sheffield-Sutton town line. The access and parking lot for this WMA are located on Union House Road. Calendar Brook WMA is open to regulated hunting, trapping, fishing, hiking, and wildlife viewing.

Although the area is almost entirely forested, old fences indicate that portions of the area were cleared and used for agriculture until the early 20th century.

The Vermont Fish and Wildlife Department purchased 340 acres of Calendar Brook WMA in 1965. An additional 73 acres were purchased in 2000. These lands were purchased with funds from the Federal Aid in Wildlife Restoration Program, also known as the Pittman-Robertson Act. The program is funded by an 11% excise tax on rifles, shotguns, ammunition, and archery equipment.

The WMA takes its name from Calendar Brook, a tributary of the Passumpsic River which flows through the heart of the property. Elevations range from 1,300 to 1,500 feet, and the terrain is moderately sloped to flat. The land is mostly softwood forest, dominated by white and red spruce and balsam fir in the drier uplands, and white cedar in the wetland habitats. The spruce-fir softwood forests provide shelter from deep snow, cold temperatures, and wind chill. An adequate winter shelter is critical to the survival and reproduction of white-tailed deer. There are also small amounts of aspen, red maple, and yellow birch mixed throughout.