OK, I thought I was a little "off", but now I see I'm right at home!
For my chickens, I have raised:
larval blow flies (most people call them maggots; I called them chicken protein) but that STUNK and actually caused my down-wind neighbor to come over one time and ask if there was a dead animal stuck under the chicken coop! Oopsie!
http://www.themodernhomestead.us/article/Feeding-Chickens-Maggots.html
soldier flie larvae (great big ugly boogers that the girls LOVE, but the food source can get a little fermented-smelling if you don't manage it right)
http://blacksoldierflyblog.com/
red wigglers (the girls turned their beaks up at wigglers and earthworms; bummer, because I could sure grow wigglers!)
meal worms (the only time I had issues with odor was when I used the "dry litter" method with wheat bran, and the material got REALLY old with a lot of dead beetles in it. Otherwise, these are very easy to grow, but can be feast or famine as already mentioned. House wrens also like 'em. Since they don't climb, I grew them in a 10-high storage tower where each drawer was about 2" tall, with different drawers having different ages of worms (which isn't a good word for them. they're not slimy or gross; they're actually quite elegant).
Growing "tower":
http://www.staples.com/Iris-10-Draw...Supplies:Totes_&_Drawer_Storage:484971:116223
I stopped because I was going through $20 of wheat bran a month and I couldn't cut back on my habit! I have no idea how many thousands of meal worms I raised.