It seems like something is always coming down from the trees around here. At the moment it is the fluff from the cottonwood trees. Cottonwoods like moist areas to grow in and we have a lot of such areas around our part of the Robson Valley, so we have a lot of cottonwoods surrounding us.
The photo shows Lucifer checking out some of the cotton on our driveway. Below is a closeup of one of the cottonwood fluff segments that has fallen from the trees.