Fernhill Wetlands is a repurposed waste water site which now has a lot
of ponds and restored habitat. This is in Forest Grove, Oregon off
Highway OR 47. There is a website about it.... We were there on Sept 17,
where we got some spectacular photos of Great Egrets, posted one on my
website ( birdsbydave.com; use the search facility on the site to see
it, search for Great Egret)

Lots of other birds were seen by the rest of our family group.