Let's get this out of the way right off the bat: "Prairie Whale" is an old name for a pig; by the mid-19th century, rendered lard was beginning to replace whale oil in lamps. Restaurateur Mark Firth chose the phrase to rename his year-old Great Barrington establishment, formerly the Bell & Anchor, after he got a cease-and-desist order from another Bell & Anchor in Sag Harbor.