Johnston Jeff Young Bird No Maize Pigeon Corn. Johnston Jeff Young Bird No Maize Pigeon corn is a complete feed for young pigeons and can be fed ad lib as require.Johnston Jeff#s blends are individually developed to give the right levels of nutrients, richness and variety, and the results shine through. Birds thrive. Johnston Jeff only use top quality ingredients and never compromise. Many of Johnston Jeff#s ingredients are human grade and critically, they clean seed and nut types individually to a purity level of 99.9%. ContainsMaple Peas, red Dari, Blue Peas, Wheat, Safflower, White Dri, Yellow Peas and Tares.