American Bullfrog (Lithobates catesbeianus) on May 24, 2023

Submitter does not have a specimen

Description of specimen

Regularly visiting the pond reveals between 5-15 adult American bullfrog on average. They are often floating on surface of pond or resting on bank. Pond is also inundated with tadpoles.

The frogs are between 5 and 9 nches in length. Range from dark green to brown and have a large eardrum that is visible.

Tadpoles are between .5 and 1 inch in diameter, olive in color with a yellowish underside.

Commentary

Thank you for your report! Unfortunately bullfrogs are pretty common in the Willamette Valley now. The Oregon Dept. of Fish and Wildlife has a fact sheet about bullfrogs and actions that can be taken at https://www.dfw.state.or.us/conservationstrategy/invasive_species/docs/bullfrog_fact_sheet.pdf. There are some more control tips at https://www.denverpost.com/2019/07/03/boulder-county-invasive-american-bullfrogs/. Your report will be incorporated into our statewide invasives database, iMapInvasives, and will contribute to our understanding of the distribution of bullfrogs in Oregon.

Lindsey Wise
June 8, 2023, 2:40 a.m.