I was going to walk on that sidewalk, and I turned the corner and saw this.
I opted to take a different route.
At work there is a large pond area with fountains that provides a heat-sink for the HVAC systems of nearby buildings. It also provides a waystation for a lot of geese. On this hot day, the geese were swimming under the fountains to stay cool (I presume) and we all enjoyed a rainbow together.
In the waters near the National Mall in Washington, D.C. they have created a number of nesting sites for the various waterfowl. These geese seemed quite appreciative.