To be fair, chickens can see and discriminate between insects before putting them in their mouths. Powdered insects preclude that.

Likewise, cows would never eat a carcass cow, but as hamburger mixed with a lot of grass...

> To be fair, chickens can see (insects)

Yes, they do that

> and discriminate between insects

Yeah, they do not do that.

They also eat mice, which I guess came as quite a surprise to the cat that was stalking the mouse, although not half as much as to the mouse.

Chickens eat anything they can. Sometimes including eggs and chicks. https://en.wikipedia.org/wiki/Cannibalism_in_poultry

Indeed we already feed them insects and we don't powder them. You can purchase bags of dried meal worms at the feed store. The carcasses are fully intact.