Yep, it sure is! They are little pigs. =) You can just throw some more hay on the floor or in a tissue box if it runs out too often. What do you use for a hayrack, a grid? Or one of those little ones?
Pigs eat. Pigs eat a LOT. I suggest a much bigger hayrack. Or just dump a large pile of hay onto the cage floor and watch the fun begin! Pigs love to play and hide in hay as well as eat it.
Yep, those little racks just don't cut it. I used to use one, and I'd refill it four times a day, heaping some on the floor and on top. Mine eat a lot, too--as I'm sure they all do. =)