Of the 17 species of frogs and two species of toads found in southern Illinois, some species, such as the bird-voiced tree frog, Strecker's chorus frog, crawfish frog and pickerel frog
, may have declined or disappeared in other parts of the state.
hunts the pickerel frog
, the redwing walks over lily pads,
(Lithobates palustris)--Pickerel Frogs were observed regularly within the cave in all seasons, and on the surface during spring and summer.
Amphibians and fish were identified in the field to species when possible and released at site of capture; species of leopard and Pickerel Frog
tadpoles were combined into one category as they are visually indiscernible.
The seventh Vigo County ranid is Lithobates palustris, the pickerel frog
, which is not common.
Parasites of the pickerel frog
, Rana palustris (Anura: Ranidae), from the southern part of its range.
Our pickerel frog
snores, increasing and decreasing in volume like a Doppler-shifting race car going around a track.
Thus, we assume that salamander predators reduced the recruitment of species such as the American toad, spring peeper, pickerel frog
, southern leopard frog, western chorus frog and wood frog.
What you have is a pickerel frog
. Although it is similar in appearance to a leopard frog, pickerel frogs
have a yellow or orange color on the concealed surface of their hind legs, which is visible in your photo.
All 33 species of amphibians encountered in this survey were found at the preserves, but two species of frog, the pickerel frog
Frequently confused with the Pickerel Frog
, the Northern Leopard Frog has an elongated body with two or three rows of roundish dark spots on its back.
A male ruby-throated hummingbird feeds on the columbine, a star-nosed mole lives beneath the cliff, a pickerel frog
shares the pool.