A small, versatile amphibian that is native to the western coast of the United States and Canada. It’s particularly famous for its loud, distinctive call, which has been a common background noise in many Hollywood films, often used to evoke the essence of a typical night in rural America.

One of the most interesting features of the Pacific tree frog is its ability to change color. Although generally, they are a shade of green or brown, with a creamy underbelly, they can switch between these colors depending on their surroundings and temperature. This isn’t for camouflage alone but also to regulate their body temperature through absorption or reflection of sunlight. These frogs also have a distinct dark mask that runs from their nostrils, across their eyes, and to their shoulders, which is a key characteristic for identification.

Despite their name, Pacific tree frogs are often found on the ground, in low vegetation, or hidden among leaf litter. They are not limited to arboreal (tree) habitats. Instead, they thrive in a variety of environments, including forests, meadows, and even suburban backyards, as long as there is a water source nearby for breeding. They are highly adaptable and can be found from sea level up to high mountain ranges.

During breeding season, which can vary from January to July depending on the local climate, male Pacific tree frogs are known for their loud calls. These calls, which sound like a sharp “kreck-ek” or “ribbit,” are used to attract females and can be heard from far distances. The females lay eggs in shallow, still water, where the eggs develop into tadpoles before metamorphosing into frogs. This quick development is crucial for survival in temporary pools, which may dry up.

Distribution

Country

Population est.

Status

Year

Comments

Canada

2019

British Columbia

United States

2019

Did you know?

• The Pacific tree frog is the official state amphibian of Washington.