Image of Nerodia erythrogaster flavigaster

Description:

Liz from Audubon thinks this is possibly a yellow bellied water snake (never documented at Limestone) instead of water moccasin. ID please. Water in swamp is extremely low due to lack of significant rainfall, with a few puddles left back near the alabaster police firing range where I photographed these snakes, 6-14-16. These snakes were rolling in the water puddles and eating fish, frogs. They were observed using their noses to dig them up out of the mud.