One more thing to look out for in the park: a weathered sheet of plywood lying on the ground might be a snake board, sheltering small mammals and the herps who eat them, reports the Winter 2008 number of the Fairfax County Park Authority’s newsletter, ResOURces. Tony Bulmer’s checklist for boards at Ellanor C. Lawrence Park (he’s a naturalist and interpreter there) includes nine species of snake, as well as skinks, salamanders, and toads. Caution: if you find a board, don’t disturb it. If you flip it over without knowing what you’re doing, you may find yourself nose-to-nose with a copperhead.