No way...the reason small game populations are in trouble is because of all the redtail hawks and the coyotes the PGC stocks...we need to set a bounty on hawks for sure. Think about all the rural farms and houses in Pennsylvania, most have a "few" cats hanging around the barn to "control" the mouse population. These cats can range for miles from the barn, killing 365 days a year 24 hours a day. I have a high school buddy that has a farm in Venango County. He said to me one day "you hunt woodcock don't you?" I told him I did. He said "boy those things are dumb, my cats brought back a bunch of them this spring".
Ya' I read that report and I am shocked. SHOCKED! Frankly though, as many times as I have been hunting I have only seen 2 x cats in the woods. I know they probably hunt at night and just get out of the way in the daytime. What gets my shoes on the wrong feet are the people who, having decided they no longer want a cat, take it to an SGL and let it go.
I wouldn't worry so much about the law with feral cats. I think its an unwritten gray area. Wildlife officers and DNR know darn well how bad feral cats are, I'm sure they aren't looking to actively cite and prosecute feral cat assassins.
Shoot, shovel, and shut-up seems to be the way to operate. It's how I have gone about it thus far.
That report doesn't come as a surprise to me, my dad has been saying that FOREVER. I have local, yet feral tomcat hanging around. It swipped a grouse I had hanging off a hand railing. I'll be investing in a live box trap... and some sub-sonic aguilas for 24" 22lr. With grouse being somewhere around $50 an ounce ($54 or so after said trap and ammo), that acted as last meal so to speak for that dirty bugger.