When I stopped on the prairie to photograph sulphur butterflies puddling on a cow patty, somebody else caught my eye. At first I thought it was one of our juvenile Attwater's Prairie Chickens! But one glance at the long beak corrected that idea. It was a large brown bird slowly stalking through the grass near a culvert and drainage ditch. This was a spot where there was usually standing water, but now the ground was hard, dry and cracked because of our scorching, dry weather. He took cover in a thicket of short Rattlebox trees to preen briefly, then strutted back into the culvert beneath the gravel road. The Preserve Manager identified him for me - a Clapper Rail.