I am sick of the amount of 'feed dust' that a 50 lb. bag of pellets has. The birds don't know what to do with this 'crumby dust'. I try to recycle it day after day, by putting the previous day's 'dust' on top of the new day's feed. But this amount of leftover 'feed dust' just keeps accumulating. Somtimes I feel like sifting the pellets and just throwing out all the 'dust'! Know what I mean? What do you do?