[pandora]

I read somewhere else that hens will appreciate grass cuttings to root about in, however as a horse owner too, from a horse's point of view grass cuttings can be lethal. I know my hens appreciate any greenery they can get - should I be giving them my grass cuttings?

[joyfull]

short clippings are ok so long as any not eaten within a short time span are removed as they can start to ferment very quickly. Don't give long pieces as they can lead to impacted crop  .

[grumpydad]

dont give grass that has any treatments, weed and feed or verdone etc

[Pretty Chick]

Yes, feeding the chickens long bits of grass could result in an impacted crop. I guess short cuttings are okay 
I don't feed mine grass cuttings just to be on the safe side. I let them peck away at the growing grass in the garden themselves.