Wood Frog Lithobates sylvaticus = Rana sylvatica markings: medium brown/tan dark eye mask call: chirdicks, chorus – raspy quack Call (mp3s): Wood Frog Description Boreal Chorus Frog Pseudacris maculata (older field guides may show western chorus frogs, Pseudacris triseriata, for northern Illinois, but … Continue reading Chicagoland Frogs