Wma and NWR areas in the state of Louisiana

I have had the same thoughts and conclusions here in my area. Figured maybe a birth control or poison of sorts was established quietly but haven't saw any evidence nor heard any rumors of that here. I have mentioned the guys with Thermal equipment having reportedly killed a pile of hogs here in the last year, but hog pops. are off 1.5 hrs east of here as well, seems to be too widespread to be Thermals. A real good hog hunter from south Tx. told me he hadn't saw but a very few small pigs and that maybe the bad winter storm last year stressed the hogs into aborting or not cycling, but there has been time enough for that to have passed here. The hogs here have pigs year round and don't really have a "breeding season" which is more common where hogs are tied really hard to the mast crop. I don't really have an idea that fits the entire scenario, but it is certainly a mystery.