Quote:
When I went out hunting for mushrooms many years ago, I told a much more knowledgeable friend that I had no idea which were the poisonous mushrooms out in the woods. He said, "You don't really need to know all the poisonous mushrooms. You need to know the one you are picking really, really well."
Unfortunately, we don't always know the safe plants or anything else really, really well. And chickens, bird-brains that they are, never talked to my wise friend, nor any wise friends, nor (in the case of the pullets that live in my backyard) even to older and wiser chickens . . .
Black locust have poisonous seeds. And, perhaps other parts of them are toxic, as well. (The darn thorns sure do hurt.

)
Honey locust trees are not of the same genus and species as black locust.
Fortunately, and even tho' there are black locust growing on my property line with the birds out in the yard frequently - they just haven't shown any sign that they are poisoning themselves by eating the seeds. The pods and seeds are just everywhere under those trees.
I would NOT rake those seedpods and put them in their pen. No telling how many seeds would be eaten out of sheer boredom.
Here is a website that I've just come across from
the College of Agricultural and Environmental Sciences at UC Davis. The plants on this list "are generally believed to be safe." You will see
Honey locust (Gleditsia triacanthos).
If you scroll down to the bottom of the page, there is a link to
"Toxic Plants." If you look thru that list you will find
Black locust.
I think these university webpages can be very helpful. (Personally, it makes me happier looking thru the Safe Plants list
.)
Steve