Hi David, I presume you did Dunwich Heath, Westleton Heath, Walberswick or Blyth estuary last trip? You could always venture down to RSPB North Warren (near Aldeburgh/Thorpeness), that's an excelent reserve. Also up to Benacre and Covehithe broads, between Lowestoft and Southwold.
What exactly do you mean by 'bird suppliers' .... sounds like an unfortunate phrase to use on this site
Do you mean birdfood? If so, the shop at Minsmere is pretty well stocked.
Regards,
Andy