We have a large nature area and ponds right next to a brewpub. The brewery puts out a LOT of mash (spent wheat, barley, malt, etc, depending on the kind of beer) and I'm wondering if we can feed this to swans? Right now there are Canada geese in the area but I would love to try bringing swans in (which is another issue entirely!)

Would about an acre of ponds be enough for a few swans?

Thanks,
Dawn