Certain kinds of birds -- mostly blackbirds (starlings, grackles, crows) -- often gather and migrate in large flocks during fall and winter. It is not unusual for millions of them to roost in particular location for a while. We had some roosting in woods behind my neighborhood when I was a kid, and the ground was white like snow after they finally left.

I am stuck at home today, so no commute for me. Got rained out yesterday so I drove. Hopefully the rain will let up later today so I can go for short ride around the hood.