Rana palustris
Pickerel Frog

Pickerel Frogs are similar to Northern Leopard Frogs in general size and appearance with a few distinct differences. Pickerel frogs have rectangular dark spots arranged neatly in two parallel rows down their back, a light line on the upper jaws and bright yellow flashes under their thighs. They are from 1 3/4 to 3 inches long (4.4 to 7.5 cm) and may appear bronzy or brownish. They live in cool streams with grassy margins and fens, usually but not always near woods.

In May, males make a very quiet, one to two second long snore as they call for their mates. Females can lay thousands of eggs in submerged masses. The eggs hatch to tadpoles which emerge later in the summer. Curiously, few snakes eat Pickerel Frogs. Herpetologists believe this is due to skin secretions which render the frogs distasteful.

Species of Frogs and Toads of the Chicago Region

Northern Cricket Frogs
Acris crepitans blanchardi
American Toads
Bufo americanus
Fowler's Toads
Bufo woodhousii fowleri
Tree Frogs
Hyla versicolor complex
Spring Peepers
Pseudacris crucifer
Western Chorus Frogs
Pseudacris triseriata
Rana catesbeiana
Green Frogs
Rana clamitans
Pickeral Frogs
Rana palustris
Northern Leopard Frogs
Rana pipiens
Wood Frogs
Rana sylvatica
Plains Leopard Frogs
Rana blairi
Amphibian links . My homepage

Ellin Beltz ebeltz@ebeltz.net
October 26, 2008

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