Waterbird Survey, 2011
National Park Service ground counts on Red Rock Lake in St. Paul, MN found a decline in numbers and diversity of waterbirds in 2011, suggesting a decline in water or habitat quality from previous years.
Aerial surveys (FWS) further downstream found the numbers and diversity of migrating waterbirds steadily to heavily increasing in certain areas along the Mississippi River. This suggests a need for improvements in water quality and wetland habitats upstream, in Pool 2 (map)
Did You Know?
The Mississippi River is approximately three feet deep at its headwaters at Lake Itasca and has an average surface speed of 1.2 miles per hour.