…was a frog.  Or rather, a dozen frogs. Recently, Tracey Mitchell and I made one last trip to the southern portion of Illinois, in hopes of finding a few more serpents before the door slammed for good on the season.  Temperatures the previous night had dropped into the lower thirties, but with a forecast of sun and sixty, we thought our chances were pretty good of seeing a few cool species close to their hibernacula. The destination for our one-day rocket run south was a set of limestone bluffs, remote and seldom visited by other herpers, mostly because there is no easy way to reach them.  There are no trails, and one has to force a path through blackberry bush…