I bought some BOSS for a treat for my flock. They won't eat it. None of them. Whenever I feed tomatoes, cantaloupe, watermelon, squash, anything else with seeds, the seeds are the first thing they go for. But they act like they don't know what the heck to do with the BOSS. Are they too lazy to crack them open or am I supposed to feed unshelled BOSS and give the shelled to the wild birds? Maybe they really don't know what to do with it. . . They're ravenous otherwise and eat pretty much anything else.