Since fall all the finches have disappeared from our feeders here in central Ma. In the over 12 years doing this, goldfinches have always been more than plentiful, never leaving from season to season. They've never left like this before. We haven't changed our food and there are a ton of chickadees and titmice here. Our birdstore folks are reporting the. same thing for their home feeders as are other of their customers. They say this is happening in other place here in Ma. Anybody else noting the same occurrence?