Illinois Waterfowl Surveys and Investigations W-43-R-62: Annual Progress Report

This study addresses the following objectives: 1)Inventory abundance and distribution of waterfowl and other waterbirds (a minimum of 10 species and guilds) during autumn migration at a minimum of 40 sites along the Illinois and central Mississippi rivers; 2) Investigate the ecology of canvasback and lesser scaup during spring migration in the central Illinois River valley (IRV) and Pool 19 of the Mississippi River; 3) Estimate waterfowl and other waterbird population sizes (a minimum of 10 species and guilds) during autumn migration using an aerial quadrat survey in the IRV for comparison with aerial inventories (Objective 1); 4) Determine breeding bird use of a minimum of 10 moist-soil wetlands managed for waterfowl during summer in central Illinois; 5) Investigate the breeding ecology of sandhill cranes during spring and summer in northeastern Illinois; 6) Distribute our findings to site managers and biologists, make recommendations for future management, and draw conclusions relevant to regional conservation planning during the project period as appropriate and requested.