Hello and thank you for your report! Bullfrogs are common in Washington County and so are generally not a priority for control. Your report will be incorporated into our statewide invasives database, iMapInvasives, and will contribute to our understanding of the distribution of bullfrogs in Oregon. The Oregon Dept. of Fish and Wildlife has a fact sheet about bullfrogs and actions that can be found here:

https://www.dfw.state.or.us/conservationstrategy/invasive_species/docs/bullfrog_fact_sheet.pdf.

You may want to compare with photos from the link below to be sure they are bullfrogs - although they are certainly common in the Portland-Metro area:

http://www.californiaherps.com/frogs/pages/l.catesbeianus.html

Brandy Saffell
Aug. 10, 2020, 10 a.m.