Amphibians
Northern Cricket Frog
Acris crepitans · also called northern cricket frog, cricket frog, rattle frog
The northern cricket frog is barely bigger than a thumbnail, and it makes a sound like someone tapping two pebbles together, faster and faster, until a whole pond edge rings with it. Catch at it and it is gone — this tiny frog is one of the best jumpers, for its size, of any animal with a backbone.
Overview
Northern cricket frogs live at the sunny edges of still and slow water — ponds, ditches, streams, wet meadows — across the central and eastern US. They are 1.5–3.8 cm, warty (unusual for a tree frog relative), variably grey, brown, green, or red, with a dark triangle between the eyes. They eat tiny insects along the shoreline.
The call
The male’s call is a metallic “gick-gick-gick” like two pebbles struck together, starting slow and accelerating. A full chorus sounds like a field of crickets — hence the name.
The jump
A cricket frog can leap over 30 times its body length in one hop, and fires off a rapid series of erratic zig-zag jumps when startled. To escape across a pond it skitters over the surface in long flat jumps rather than diving toward underwater predators.
Status
The northern cricket frog is Least Concern overall and still common in the south, but has declined sharply or vanished across the northern part of its range — the upper Midwest and Great Lakes states — for reasons not fully understood, likely a mix of habitat loss, runoff, disease, and hard winters.
Northern Cricket Frog: common questions
Why is it called a cricket frog?
The name comes from the call. The male’s advertisement call is a hard, dry, clicking sound often written as ‘gick gick gick’, made by snapping the vocal folds, and it is usually described as sounding exactly like two small stones, marbles, or pebbles being tapped together. The clicks start slowly, then speed up into a rapid rattle before stopping, and dozens or hundreds of males calling from a pond edge on a warm evening blend into a continuous chirping racket that sounds remarkably like a meadow full of crickets. The frog itself is roughly cricket-sized too.
How far can a cricket frog jump?
Extremely far for its size. A frog only two or three centimetres long can cover 90 centimetres or more in a single leap, which is over 30 times its body length, and some measured jumps approach 60 times body length. It does not just jump once, either — when startled it fires off a rapid series of long hops in unpredictable directions, zig-zagging away from the threat. This makes a cricket frog genuinely difficult to catch by hand, and it is the frog’s main defence, since it has no toxins and is small and edible.
How does a cricket frog run across water?
When a cricket frog at the edge of a pond is alarmed, it often does not dive in and swim down, which would take it toward fish, turtles, and predatory insects. Instead it launches out over the open water in a series of long, low, flat jumps, each one skimming the surface and pushing off again before the frog sinks, so it ‘skitters’ several body lengths across the water and then either reaches the far bank or dives once it is well clear of the shore. It is not walking on water like a basilisk lizard; it is making repeated shallow jumps off the surface film.
Why has the northern cricket frog disappeared from the northern US?
This is an active area of concern and research. In states like Minnesota, Wisconsin, Michigan, Ohio, and West Virginia, the northern cricket frog was historically abundant and is now rare, state-listed as threatened or endangered, or gone from large areas, even though it remains common further south. No single cause has been pinned down. Suspects include the loss and degradation of the shallow, sunlit, fish-free pond edges it needs, agricultural pesticide and fertiliser runoff, the amphibian chytrid fungus, harsh winters at the edge of its cold tolerance (the frogs do not burrow deep and many die overwinter), and habitat fragmentation isolating populations. It is likely a combination hitting a species that is naturally short-lived and living at its climatic limit.