Boss is Black Oil Sunflower Seed. They grow them a lot up here, and flax as well. Health food stores carry flax seed, some feed mills may carry it as well, I don't know. Meal worms are actually very easy to raise. You can also use meal worm poop for fertilizer. I've seen seed starting mixes that have it. I have a tub in my daughters bedroom that has cereal, flour, stuff like that in it. It's for the mealworms that I found in a closet after I forgot about a back of dog treats that were in there. Now and then I take out some meal worms and give them to the peachick. I just can't hand feed anymore, she bites my fingers when she goes after the meal worm and I am trying to break that habit before it becomes painful.