I've never had a problem with Guinea hens and my other livestock.
It's never too late to start! I retired to homestead on the slopes of Mauna Loa, an active volcano. I relate snippets of my endeavor on my blog : www.kaufarmer.blogspot.com
Note to self: don't get into a fist fight with a cactus. Command this tiny ad to do it:
it's easier and more soul building than any workee-job