. "Kirsten's Winter Pastimes"@en . "Round cardboard disk with a bird printed on one side and a birdcage on the other. There are two strings on either side that are used to spin the thaumatrope, thus creating the illusion that the bird was inside the cage."@en . . . . . . . . . "Round cardboard disk with a bird printed on one side and a birdcage on the other. There are two strings on either side that are used to spin the thaumatrope, thus creating the illusion that the bird was inside the cage."@en . . . . . .