The marsh area contains organisms of the cold-blooded variety both reptile and amphibian. The painted turtle is the easiest to see on a warm sunny day; as a member of the basking turtle family it will climb up out of the water to warm itself. These turtles prefer soft bottomed bodies of water and are mainly carnivorous. The bright coloration on their underbelly with red lines on the neck becoming yellow at the head gives them their name. Garter snakes inhabit the marsh area feeding on amphibians, fish, and worms. Although found near the water they are not true water snakes. Garter snakes are non-poisonous and do not possess enlarged teeth, however they may, if captured, discharge musk from the base of their tail which has an unpleasant odor.

Amphibians can also be found or in this case heard in the marsh area. The leopard frog (commonly found on high school dissection trays) is the most recognizable in spite of its variable coloring ranging from green to brownish with dark spots. Its diet consists mainly of insects. The leopard frog will travel from the ponds and marshes to meadowlands for a meal. The wood frog is smaller than the leopard frog and while it doesn't have spots, it has a characteristic mask design on its face extending from the snout to over the eardrum. This species has well developed, long legs allowing it to be the most terrestrial of all the pond frogs. It is also considered to be the most intelligent frog based on similarities in hunting style with the toad. These frogs remain silent throughout the year except during their breeding time in the early spring when up to 3000 eggs will be laid in temporary pools of water.Chorus frogs can also be found in the habitat. This frog, commonly rust colored but may be green, possesses a pointed head, short legs, and discs on the fingers and toes which are barely noticeable. Survival for this frog is quite a challenge as it is neither fully adapted to a water nor terrestrial existence.Tiger salamanders may occasionally be discovered under logs or in animal burrows which they use as places to hide during the day. These nocturnal creatures have variable color with a dark or yellowish-brown to black ground cover and a yellowish with dark marbling undersurface. Small fish, frogs, and young mice comprise the majority of its diet.