Thomas Hill Reservoir

Located about ten miles southwest of Macon, Missouri, Thomas Hill Reservoir was formed by damming the Middle Fork of the Little Chariton River.  The 4950 acre lake and the surrounding Conservation Area are on property owned by the Associated Electric Cooperative, which built the reservoir to providing cooling water for its power plant.

For those who live in the region, Thomas Hill Reservoir is best known for its excellent fishery and birders flock to the lake to observe resident and migrant bald eagles, gulls, terns and waterfowl.  Today, accompanied by a friend and fellow birder, I had the opportunity to view several sections of the reservoir; there we observed two large rafts of lesser scaup, joined by smaller flocks of buffleheads, coot, hooded mergansers, redheads and northern shovelers.  A large number of Bonaparte's gulls wheeled above or settled on the choppy waters and small groups of pied-billed grebes foraged in the shallows.  Other sightings included two bald eagles, a red-shouldered hawk, a northern harrier, great blue herons, ring-billed gulls, double-crested cormorants, killdeer, Wilson's snipe, mallards and a lone northern pintail.

A unique feature of Thomas Hill Reservoir is a warm channel near the power plant that remains open through the winter months.  This unnatural hot-tub concentrates wintering waterfowl and is always a good place to look for rare vagrants that might wander into north-central Missouri.