I have a few square yards of buckwheat in bloom (never got it tilled under), and I have yet to see a bee on it. There is clover (white and red), birdsfoot trefoil, and about 5 acres of various weeds in bloom, and I don't see the girls on ANY of it. They're going on runs for something, but it's not pollen as far as I can tell, and from what I can see in the field and garden, it's not nectar either. What's up? I mean, clearly I can't keep track of all of them, but I like to think at least some of them would be working right near the hive.