I have always fed my birds cracked corn and Purina flock raiser crumbles. I have always noticed that powder left behind from these feeds. My birds leave the powder behind and so I have been sitting the food before I fill up their feeders. Is this okay? Is the powder left behind much like the powder in the bottom of a cereal bag? I just didn't want to be sifting away something that was good for them and basically taking away from the nutrition of the feed. When I sift it they don't leave anything behind. I've also had trouble getting them to eat crumbles so I add 8 pounds of citrus bird seed for every 50 pound of crumbles and they eat it now.
Broken/smashed convention grain from storage in a huge silo with hundreds of thousands of pounds of weight, then funneled thru a shout, being bagged up, transported, tossed off a pallet.. etc.
