Beaver recently moved into the Errol Creek Confluence site. Errol Creek is a tributary of Johnson Creek in Southeast Portland. Between 2007 and 2009, Environmental Services removed fish passage barriers to improve salmon habitat, day-lighting a section of the stream that used to be under SE 44th Avenue and providing more natural flood storage. Recently beaver have been at work there, building dams that enhance the project area. They have created a nearly half acre wetland and wonderful habitat for both juvenile salmon and amphibians.