I've raised mealworms to feed to aquarium fish for many years now. I put a few out in a cup hanging next to my normal bird feeders in February. The chickadees loved it, especially since there aren't many insects out in Vermont in February! I'm sure you'll get the same reaction with the BSFL, and BSFL are so much easier to raise than mealworms. Mealworms take about 2-3 months to go through their cycle under the best of conditions. Under mediocre conditions, it can take up to a year.
Tons of people feed mealworms to birds, especially bluebirds. Wonder if you could get a real foothold for BSFL in that market.