Where did they go?

The birds. It seems like about a month and a half ago most of them were gone. The only one around seems to be the Woodpecker. In the last four or five years that I've been feeding them in the back yard there has been a steady population around the core groups being the Morning Doves and the Chickadees. Then there has been some Bluejays stopping by now and then, Cardinals, Hummingbirds, Wrens, Cowbirds, Catbirds, Juncos, Tufted Titbirds etc. Granted some of them are migratory and we did have a couple of early fallest cool spells but the Morning Doves and the Chickadees have been a constant. So I have taken down all the feeders and will give them all a good soak and scrub next weekend then see who shows up as the weather turns cooler with winter approaching.