I have a small bird feeder hanging off a tree at the edge of our patio. Below it is a Rubbermaid container in which I keep the current stock of seed, which I usually buy in 10-20 pound bags when I see a good deal at hardware or pet stores.
During the rainstorms of the last few days, the top was blown off the container, and water accumulated a couple of inches deep in it. I dumped out as much water as I could and then got some more of the water off by putting the seed into collanders lined with paper towels. The I cycled the seed through our fruit dehydrator which had room for about 15% of it at a time. After I got all the seed back into the container and brought it in out of the wet patio, I threw in a few slices of dried-out bread-loaf heels (that were being saved for the birds) and shook up the mix every couple of hours. This morning the bread slices are all soft and moist and the seed is noticeably drier.