Timothy or Field grasses

Timothy seems to be a preference for many pigs. My own get 3 types of grass hay- bermuda, KM's blue orchard grass hay and KM's 3rd cut timothy. They eat all of them but their favorites are KM's hays expecially the 3rd cut timothy.

Guinea pigs often don't like something just because it's new or different. In a week or 2 they might change their mind or they might just decide to stay picky and demand their timothy hay. Mine prefer bluegrass but they'll eat anything except brome and bermuda.