Pictured here are hundreds of thousands of snow geese lifting off a field close to Hansen Waterfowl Production Area.

Non-Native Species Control

Canada Thistle in Rainwater Basin Wetland Management District

Canada thistle is, unfortunately, prevalent throughout the Rainwater Basin.  Aggressive management is taking place to significantly reduce the spread of Canada thistle from its current hold on the landscape.  Learn more about the methods we are using to reduce the habitat impact of Canada thistle by reading Wildlife Biologist Jeff Drahota's Literature Review of Canada Thistle Control Methods (349KB PDF).

Bird Migration

While we have several ongoing projects evaluating waterfowl use and needs in the Rainwater Basin, we feel sharing how bird populations are estimated is a topic relevant to this time of year.  Our station biologist, Jeff Drahota, compiled a 12 page document with pictures explaining how Sandhill Crane counting is conducted during aerial surveys and how you can learn these skills, too.

The file, Crane Counting 101, is a 2.9 MB PDF document.



If you are experiencing technical issues when trying to view or print a PDF, right-click the link to the PDF file, and then click "Save Link As" (Chrome or Firefox) or "Save Target As" (IE) from the sub-menu to save a file to your computer's hard drive and view it.