I'm lucky enough to live in the same city as PETA's headquarters AND very near the city that had the McChicken Head. PETA had no involvement in that, it was a real chicken head, and I don't think that would have gone with their "no cruelty to animals" gig.
The PETA building has a stocked public lake right next to it, and every year, a radio station around here has a PETA Fishing Tournament.