I found this American Toad hopping near the pond in the south part of the nature center a couple of days ago. He did not look happy. He was completely covered with cottonwood "cotton" seed "fluff." I took most of it off before I took the pictures.
You can see how dejected he looked here. The cottony seeds clung like sticky paper. I'm sure with every bug he ate a ball of this stuff ended up in his mouth.
I have friends that have this same expression when cottonwood seeds are blowing around.
In the picture below a Prairie Ringlet butterfly has landed near a Prairie Smoke flower that has gone to seed. These medium sized butterflies are only out for about two weeks in early summer then they dissappear until next year. I didn't notice the aphids near its feet until after I took the picture