Perhaps stating the obvious... Various bird bath heaters, stock tank heaters and such can be effective in keeping a bit of liquid available on days like this. I gain no advantage in mentioning BackYard Bird Shops in the Portland area sell both items. Other retail outlets should have something. Open water is a much appreciated resource for the neighborhood birds here, lots of traffic at both of our sites. Steve Jaggers OBOL archives: www.freelists.org/archive/obol Manage your account or unsubscribe: //www.freelists.org/list/obol Contact moderators: obol-moderators@xxxxxxxxxxxxx