A free leaflet expanding on the topics covered on these web pages is available by writing to GBW Hygiene Leaflet, BTO, The Nunnery, Thetford, Norfolk, IP24 2PU or by telephoning 01842-750050.

A booklet (‘Best Practice Guidelines for Feeding Garden Birds’) can be purchased from the Garden Bird Health Initiative, c/o UFAW, The Old School, Brewhouse Hill, Wheathampstead, Hertfordshire, AL4 8AN. Phone 01582 831818 for details of price and postage.