We just opened up new feed bag and the crumble color is a mix of light and dark. No clumps and the distribution seems even - at least at the top part of the bag. We noticed that the feed is different in color new bag vs older bag (but the age difference is only 5 weeks). Same feed, but the production dates are about 5 weeks apart. Storage has been indoors, in the bag, since we brought it home. Purchased at TSC. The feed smells OK, not moldy, but the newer crumble smells more strongly, and seems to have a bit more "vitamin" smell. Due to the greenish color of the darker bits, we are concerned that there may be something wrong with the crumble. We have seen color differences between brands of feed, but have never seen this greenish tint. My 11yo is concerned about killing the birds if they eat contaminated feed. Since the color distribution seems even, although a mix of light and dark, I wonder if it is just normal variation. So, please let us know if we can feed the Chicks (4 weeks old chicks) this new bag of feed! Thx in advance!