Generally cricket frogs have a dark triangle marking on their head between their eyes but you can't always see it.
Photos copyright Hester Burch
Male Northern Cricket Frogs (Acris crepitans), when calling for a mate, will sound like two stones being knocked together.
Found at Elms May 2011
photos copyright Hester Burch
Eastern mud turtles (Kinosternon subrubrum) are small. They grow only to about 4 inches long.
This turtle was found by students visiting the Elms in June 2011.
Eastern Box Turtle Terrapene carolina
The plastron (the bottom part of the shell) of box turtles can bend allowing the turtle to shut its shell after it pulls its head and front legs in. Mud turtles, which are also common at Elms, have two hinges.
Found by students visiting the Elms May 2011.