The Tewaukon National Wildlife Refuge, an area for transient and nesting waterfowl and marsh species, can be reached by starting just north of Cayuga at State Highway 11 and going south on County Road #12 through the town. After 4.7 miles you may turn left on a dirt road, which wraps around Lake Tewaukon. However, you may wish to continue on to the headquarters (turn left at a sign 5.5 miles south of starting point) to get a map, bird-list, and current information on birds and road conditions.
There are four large water-areas on the refuge—Lake Tewaukon, Cutler Marsh, White Lake, and Clouds Lake. All are supplied by the Wild Rice River and its tributaries. The refuge also contains several hundred acres of upland terrain dotted with potholes.
Perhaps the most spectacular aspect of the bird life is the numbers of geese which stop here in migration. Spring flights are greater than those in fall, with peak populations of over 100,000 geese (mostly Snow Geese of both color phases) present at one time. In addition, large numbers of ducks pass through, and several species nest. Eared, Western and Pied-billed Grebes all nest, and small numbers of American White Pelicans and Double-crested Cormorants can be seen throughout the summer.
Although the great numbers of geese usually get the most raves from out-of-staters, there is a more interesting side to the refuge from the North Dakota birder’s standpoint. It and other similar marshlands in the southeastern sector draw into the state several species with more southern affinities. A good example is the Great Egret. A rare migrant and late-summer visitor over the rest of the state, here, it is fairly common in late summer. Other species which could fall into such a category include Little Blue Heron, Cattle and Snowy Egrets, Least Bittern, White-faced Ibis, American Black Duck, and King Rail. All are decidedly rare, not only here but throughout the state. Although most occur every year, they are not to be expected by the visiting birder, but they do show the potential of the area.
Besides attracting all of the common migratory shorebirds, the refuge can boast of nesting Willets, Marbled Godwits, and Upland Sandpipers. Soras and Virginia Rails are fairly common in the marshy areas, as are Marsh and Sedge Wrens. Sharp-tailed and Le Conte’s Sparrows are uncommon nesters in wet, grassy areas. The Swamp Sparrow (fairly common in migration) should be watched for in summer, because there are a few colonies nesting in the county. Yellow-headed Blackbirds are abundant, and in some years Short-eared Owls nest. Some of the more interesting upland species include Gray Partridge, Bobolink, Dickcissel, Lark Bunting, Grasshopper Sparrow, Clay-colored Sparrow, and Chestnut-collared Longspur.
d) [Ransom] County
A nice woodland area may be reached by going west on State Highway 46 from State Highway 32 about four miles west of Enderlin. Go 12.6 miles and turn left (south) at the sign to Little Yellowstone State Park.
This park is not an outstanding birding spot, but it can be good in spring and fall, and it does offer a pleasant spot to camp. It is well wooded and therefore good for any of the species typical of this habitat, as well as for accipiters and owls (Great Horned and Common Screech). Most of the transient warblers found at Fargo also occur here, although some of the more marginal eastern species, such as the Northern Parula, are not to be expected this far west. Large numbers of sparrows frequent the brushier areas during migration. Some of the more abundant species include White-throated, White-crowned, Harris’, Lincoln’s, American Tree, and Field Sparrows.
e) [Barnes] County
