The Great Plains toad (Bufo cognatus) is a relatively large species of toad. It ranges from southern Alberta, throughout the western United States, and into northern Mexico. The toad is gray, brown, and green in color, with darker colored blotching. It can grow to anywhere between in length. Its primary diet is various species of cutworms. It prefers grassland habitat with loose soil that is easy to burrow in. Breeding occurs throughout the spring and summer months, most often immediately after heavy rainfall. In dry areas it may only emerge from its burrow for a few weeks when conditions are right, and only at night, but in areas with permanent water bodies and abundant rain it may be active all day. It has a very loud, harsh mating call. In Montana, this toad is found in the eastern half of the state. Columbia spotted frog The Columbia spotted frog (Rana luteiventris, Salish: ɫmɫam̓aá) is a North American species of frog. It is a medium-sized frog reaching lengths of up to . Its color ranges from a dark, olive green to light brown with irregularly-shaped black spots on its back and legs (rendering its name). The belly and upper lip are white in color. Individuals can be distinguished from other Rana species by their shorter back legs, narrow snout and upturned eyes. Since they spend most of their time in the water, they also have more webbing in their hind feet than similar species. In Montana this frog is abundant in the western portion of the state. It is found all summer along or in rivers, streams, smaller lakes, marshes, ponds, and rain pools. It lays eggs in stagnant or quiet water, in globular masses surrounded by jelly. Northern leopard frog The northern leopard frog (Rana pipiens) is a species of leopard frog from the true frog family native to parts of Canada and United States. The northern leopard frog is a fairly large species of frog reaching about in length. It varies from green to brown in dorsal color with large dark circular spots on its back, sides and legs. Northern leopard frogs have a wide range of habitats. They are found in permanent ponds, swamps, marshes and slow moving streams throughout forest, open and urban areas. They normally inhabit water bodies with abundant aquatic vegetation. They are well adapted to cold and can be found above asl. This species