MONTREAL — When Kim Côté and Perle Morency added a seal-meat burger to the menu of their popular bistro in Kamouraska, Que., they decided to have some fun with the name. The Phoque Bardot Burger — combining the French word for seal and the name of the actress known for her campaign against the Canadian seal hunt — became one of the restaurant’s top sellers. But last month news of the couple’s creation made its way across the Atlantic, and animal-rights activists there failed to see the humour. A French Facebook page called “Defend the animals and protect nature” reported...