More: Tilly (like till the soil) and Cassie (short for Cassava- a major staple food in the developing world) are farm dogs who help with chores like chasing ground hogs, herding the chickens and goats and providing constant love and loyalty at Hobart Farm in Hanover, PA. Both own Orvis collars, as seen on Cassie. Tilly has one on too, but she's just too fluffy to see it!