The Pacific Chorus Frog (Pseudacris regilla, also known as the Pacific Tree Frog) is very common in the Willamette Valley, Oregon and elsewhere in western North America. In late winter and spring, loud choruses of hundreds or thousands of frogs can be heard. These tiny frogs mate and lay eggs in lakes, ponds, slow-moving streams, shallow bodies of water, flooded fields, ditches and more. Learn about what they look like, what they sound like and how you can watch them making their “ribbit” call.
