Roy Knispel and others found about 200 Cliff Swallows 7 June 2014 at Sycamore Shoals Dr. in Carter Co. TN. "There are over 200 Cliff Swallow nests along the undersides of the bridge where Hwy 400 crosses the Watauga River in Elizabethton. Not all nests appeared occupied. We did our best to count swallows using the nests and estimated the population at 200," he reported.