I understand what Tecumseh and Iddee state in that a frame laden with pollen becomes a barrier to the queen which she will not cross. I often find these in my lower boxes. What I am wondering is if this holds true for "bee bread". I am finding frames of what looks like very loose, crumbly type material, not quite what pollen looks like and often it is smack dab next to a frame of brood. On the other side of this frame there is more brood so I am wondering if this material is bee bread and that they want it as close as possible to brood? Will they feed this and open up the frame for more brood rearing? Does anyone have a picture of exactly what bee bread looks like? (if not, maybe I should take a pic next time).