I feed it to my turkeys and chickens for an occasional treat since they do not free range. They LOVE it, I just take a half a flake and give them the hay and they devour it, not even the stems are left at our place. It is high in protein so I do not give a lot, probably 2-3 times a month. I tried alfalfa pellets and they hated them dry or soaked. Just make sure they are adults and they have grit for breaking it down and I think its fine, I have been doing for 2 years without issue.
*edited to add that I use a half a flake per 4 birds and they munch most of the day.