Let's settle this once and for all: The plural for Bigfoot isn't Bigfoot or Bigfeet. Using Bigfoot as a plural suggest that there's only one Bigfoot-- a mythical creature. Saying Bigfeet just sounds really dumb. Sure, we can debate all day long about other animals that have the same singular and plural forms, but until we actually have a live specimen, let's just stick to saying Bigfoots, or Sasquatches if you prefer to call them that.
BFRO president Matt Moneymaker, agrees with us that it should be Bigfoots or Sasquatches and we've seen a couple of occasions where he actually blew up on a TV show host for saying "Bigfeet" as a plural or "Bigfoot" as if there's only one creature. On ABC News today, watch Moneymaker correct a reporter about this: