For many years Rieck's Lake Park was "the" location to go and see tundra swans during the fall migration. Thousands of swans would converge on the lake each fall to feed on wild celery and arrowhead tubers. This made the lake popular with birders and so a deck was built to accommodate all of the visitors coming to see the swans.
Unfortunately near the end of the 1990's the lake changed. Large amounts of silt filled the lake bottom making the lake more shallow. The emergence of burreed has also changed the habbitat of the lake. Burreed grows rapidly in shallow water. It grows in large beds that do not die down during the fall and winter so it filled up much of the open water areas of the lake.
Work has been done, including dredging, to try and make the lake habitat more suitable so that the swans will again return in large numbers. At this point though there are usually less then one hundred birds that use the lake during the migration. However many of the birds that do use Rieck's Lake are with in close view making it one of the best places to view migrating tundra swans.