NORTHERN LEOPARD FROG
The northern leopard frog (Lithobates pipiens) is a 2- to 3½-inch slender brownish or green frog with two or three rows of irregular rounded dark spots with pale borders. It is often confused with the pickerel frog (Lithobates palustris), which has squarish dark spots and bright yellow or orange inner thighs. They are most often associated with rivers and floodplains. Threats include habitat conversion due to development, mortality from mowing and agricultural machinery, mortality from vehicles on roadways, and mortality and reduced fitness from pesticides.