HELLO ALL, I FEED REDSKINS ALL YEAR ROUND BUT NOT TOO MANY. WHEN REARING I HAVE FOUND MIXED CHOPPED NUTS''THE SORT YOU CAN BUY IN SUPERMARKETS''ARE REALLY BENIFICIAL I MIX THEM WITH HORMOFORM AND GROATS AND GIVE A SMALL AMOUNT TO EACH PAIR EACH DAY,AND A COUPLE OF TIMES A WEEK ADD ECHINACEA ONTO THE MIX AND SINCE USING THIS IVE NOT HAD ANY Y/B SICKNESS IN LOFT,BUT THIS COULD JUST BE COINCIDENCE,BUT IT DOES BRING THEM ON BEAUTIFULLY.