Pretty sure it poses a risk. My chicken ate a few and seemed sick for a bit, she got better but that was the last time i let her near them.It's very true that most things that are "toxic" or "poisonous" aren't like when someone gets poisoned in an old movie (very fast and dramatic death). Most things that are toxic would require a certain level of ingestion to really cause damage.
A taste would probably just taste bad (many toxic things are quite bitter), or maybe cause a little minor discomfort. Obviously more than that would be bad.
With some things, not all of the plant is toxic too. Like with Pokeweed, aren't the berries not toxic to birds? I thought they were spread mostly by birds eating the berries and, err...depositing the seeds around?
I‘m not sure if you’re responding to me because you didn’t quote my post? If you are, i’m not sure where people are getting the quantity from. I’m pretty sure all i was saying is it poses a threat to birds and they eat things they often aren’t supposed to. Though this is getting a bit off topic from OP’s post. We went from tomato plants to chickens dying from toxic plants. I say we end this discussion here.