Nesting migratory birds halt maintenance mowing at former Hamilton Army Air Field

Published June 25, 2018

SACRAMENTO, California – Sensitive migratory bird nests of several species, including Burrowing Owls and Tricolored Blackbirds, were found during recent mowing at former Hamilton Army Air Field’s Landfill 26 Cap, prompting immediate cessation of mowing.

 The U.S. Army Corps of Engineers Sacramento District manages maintenance of the former Hamilton Army Air Field Landfill 26 Cap, including annual mowing aimed at reducing potential fire hazards posed by tall, dry grass. Mowing the landfill cap is usually conducted after the last rains of spring, typically around May to June each year.

The Corps is now working to adjust timeframes of the annual mowing maintenance to accommodate the nesting seasons of these sensitive species. When new mowing dates have been established, the Corps will release those dates and types of activities to the community.

Currently, the Corps expects to complete mowing of the landfill cap in August or September, after the end of the nesting season.

 If you have any questions, please contact Ms. Shellie Sullo, project manager for the former Hamilton Army Air Field, at (916) 557-7628 or


J. Paul Bruton

Release no. 18-011