Sutter Buttes retake (IMAGE) University of California - Berkeley Caption Photo retakes for Sutter Buttes (Sutter County) showing the change in land use. The upper image shows a 1931 photo of Sutter Buttes in the middle of the Central Valley west of Marysville, which was surveyed for birds by Joseph Grinnell and colleagues at the time. Photo taken by Jean M. Linsdale and provided with permission of the Museum of Vertebrate Zoology, University of California, Berkeley. The lower image shows a photo of Sutter Buttes in 2016 when bird resurveys were conducted. Young walnut trees compose the foreground, illustrating the expansion of agriculture into the former grassland area. Photo taken by Sarah A. MacLean and provided with permission of the Museum of Vertebrate Zoology, University of California, Berkeley. Credit University of California, Berkeley Usage Restrictions With credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.