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Breeding takes place between April and August with males calling from the edge of ponds and swamps from April to July. The call has been described as "a deep, low-pitched, rolling snore". [3] The eggs are laid in a floating layer among emergent vegetation, a clutch numbering several thousand eggs which hatch after about three days.
After they hatch, they remain tadpoles for two to three months before transforming into frogs and are ready to leave the water. [32] Following breeding in the spring, the spring peepers' larval stage lasts two to three months. [30] The spring peeper can live an estimated three years in the wild. [33]
The frogs are large, have powerful leaps, and inevitably escape after which they may wreak havoc among the native frog population. [49] Countries that export bullfrog legs include the Netherlands, Belgium, Mexico, Bangladesh, Japan, China, Taiwan, and Indonesia. Most of these frogs are caught in the wild, but some are raised in captivity.
Western chorus frogs live in a variety of different habitats, but areas of more permanent water increase the risk of predation on eggs and/or tadpoles. To compensate for this, chorus frogs stick to mostly ephemeral freshwater areas, such as marshes, river swamps, meadows, grassy pools, and other open areas found in mountains and prairies.
Wood frogs range from 51 to 70 mm (2.0 to 2.8 in) in length. Females are larger than males. [5] [6] Adult wood frogs are usually brown, tan, or rust-colored, and usually have a dark eye mask. [7] Individual frogs are capable of varying their color; Conant (1958) depicts one individual which was light brown and dark brown at different times.
Pickerel frogs have varied habitats, the northern populations prefer to live near cold, clear water. They prefer rocky ravines, bogs and meadow streams, but can be found around lakes and rivers that are heavily wooded. In a study on amphibians in Canada, pickerel frogs were negatively associated with young forest stands. [6]
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. [10] They normally inhabit water bodies with abundant aquatic vegetation. In the summer, they often abandon ponds and move to grassy areas and lawns.
Green frogs live wherever there is shallow freshwater: ponds, road-side ditches, lakes, swamps, streams and brooks. The green frog is abundant wherever it occurs. The green frog is abundant wherever it occurs.