News & Features

Chicago Region Bird Population Trends

The 2007 Chicago Region Breeding Birds Trends Analysis, a joint project by Audubon Chicago Region, the Bird Conservation Network, and Chicago Wilderness, can be viewed on the BCN website: www.bcnbirds.org/trends07. This second trends analysis, including large amounts of new data, shows results of breeding bird surveys from 1999 to 2007.

For national trends, click on the tab “View and Explore Data” in eBird/BCN.