Very interesting. They should know what they are talking about. Mrs Nog likes to feed the swans, ducks and geese, particularly in winter. She normally buys a big bag of corn/mixed seed but does feed them bread too. One advantage of the corn is that it spreads out and all the birds get some, with lumps of bread sometimes the bigger or greedy birds can get the lions share. But for a charity to take such a stand they obviously feel very strongly about it. Thanks for posting.