The boreal chorus frog is a tiny frog. The body of an adult is only about 30 mm long. They are brown or green with dark stripes or patches. They can change their colour, from green to brown or make it lighter or darker.

The size of a boreal chorus frog .

Look-alikes: The chorus frog looks a lot like the spring peeper, but the peeper always has an "X" mark on its back and the chrous frog does not.


The word "boreal" means northern. A "chorus" is a group of singers, or croakers in the case of the frogs. These frogs get together in large groups to call for mates in the spring. So, boreal chorus frog means "northern group-singing frog"!



The boreal chorus frog is found mainly in forests, but lives in grasslands, marshes and even in cities. This frog lives in most of central North America. It is found in all parts of Manitoba, except the far north. And that may just be because no one has seen them there, yet.

Where it lives in Manitoba.



The chorus frog is a kind of treefrog. It can climb up tree trunks and on branches. It hunts for food in low branches or on the ground. Because of its size and colour a chorus frog is hard to find . In summer it hunts mainly at night and rests under leaves or in thick grass in the day. Chorus frogs spend winter under the leaves or logs on the forest floor or in thick grass and can freeze solid.



Adult boreal chorus frogs eat tiny insects, like mosquitoes, and other small animals without backbones.

Chrous frogs are eaten by snakes, birds, small mammals like mice and shrews, and by large insects. The tadpoles are eaten by birds and large insects.



Boreal chorus frogs mate very early in spring. Sometimes they can lay eggs by early April. Usually they breed from mid-April into May. They breed in small ponds filled by melting snow.

Mating call of the boreal chorus frog:

Each female lays as many as 200 eggs in small clumps on plants or sticks under the water. The eggs hatch in about 3 days.

The tadpoles grow for about 40 days before they become froglets by June or early July. The new froglets are tiny, only about 10 mm long.



The boreal chorus frog may be the most common frog in Manitoba, but they are so small and hide so well that we have no idea how many there are. There may be hundreds of them in every hectare of forest.



The boreal chorus frogs is Manitoba's smallest frog and probably our most common frog.

In winter they sleep under leaves or logs in forests, or under thick grass in meadows. Their bodies can freeze solid! Then in spring they warm up and hop away.

Chorus frogs can live just about anywhere, as long as there are small ponds to lay their eggs in.



Boreal chorus frogs probably aren't used by people. Most people have never seen one in the wild, but have probably heard the call of the males. People like to listen to the "chorus" of these frogs. It's a sound that means spring is here!