I would feed cooked sparrows to them!
If theres a compost pile, move it every so often, you would not believe what might be at the bottom of it. I found grubs the size of QUARTERS under mine, the chickens went insane! I almost got knocked over from the mad rush when they saw what I had.
A mealworm farm can be a wonderful supplemental feed for chickens. I started mine with 2000 mealies this past January. I now have an estimated 6000 and thats with feeding my chickies around 200 a month. Mealies have a high fat content but the protien is up there too.
I followed the most often mentioned way of raising the mealies which was a wallys plastic 3 drawer bin. these are the ones that are pretty wide ranging from 20$-30$. A 50 lb sack of wheat bran for them was very cheap. I did NOT like the advice of having the beetle drawer having the bottom cut out and gluing screen over it. Not only did the wheat bran and eggs fall all over thru the screen when you opened the drawer to maintain the beetles, but the drawers do not fit tightly to the frame and I was having escapees-the beetles do fly sometimes. I now have 3 regular under the bed type bins for beetles-tops have 2 biggish holes carved in them and then hot glued screen over the holes for air. I have two of the 3 drawer sets and only now using 4 drawers which is soon to change since one beetle bin is about beetled out and then I will transfer the contents to a drawer to have yet another generation of eggs hatch out and grow mealies for me.
I spend 2 hours on them every 3 days, they need humidity, warmth and food. I use sponges for humidity, carrots, dry bread and the substrate of wheat bran for food. Some people keep their bins on top of things like their TV or stereo to use the warmth.
The "frass" (mealworm/beetle poop) is the most wonderful addition to plants for fertilizer, it could be sold as that or used yourself. you would not believe my roses....
I plan on growing several things for supplementing my chickens food, mulberries, comfrey, grapevines and many other things can be planted next to their pen so they can feed on the leaves/fruit without scratching your plants right out of the ground. I also plan on a grass bin that is a frame of wood planted with grass seed and have a hardware cloth cover so they can feed on the grass without tearing it up.
I have read that they can eat duckweed and it can be dried for them for winter-I made grass hay from the excess my neighbor would bring me for them. Grow purslane! the chickies go crazy over it. I tried to dry it for winter, but its too succulant to dry well so that failed, but its a great free food for them. I infected my property with it last summer and this year every time I picked them some I shook it allover so more will grow all over the place for me.
Huge thread on mealworm farming:
http://www.backyardchickens.com/t/49...alworm-farming
www.backyardchickens.com is an exhaustive source on all that is chicken, duck, turkey and the like.
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