I used to live in River Ridge. Those things seem to go in cycles, get really bad for a few years and then drop off to not too bad for a while. But they are always nasty when you run into one.
I don't know and I would be real relunctant to trust anyone over the internet without knowing their credentials. I suggest youi contact your parish extension agent or maybe the LSU Ag Department and ask them. This forum is great for many things, but for something this serious, I'd contact someone I could really trust.
With how common those things are down there and knowing that some people free range chickens in Harahan and River Ridge, I'd think they would be OK, but I really don't know and may be advising you the wrong way. I really don't know.