'If Horses Could Purr': Purring. What's the big deal?

It's time for the annual return of the barn swallows and the residents of Back Meadow Farm have mixed feelings about this. Can the farm animals and machinery agree on a potential welcoming party? Will the celebration be mischievous and rowdy? Join in on the festivities in this whimsical tale. Delight in the chaos that happens when Human Parents aren't watching. Discover with the farm animals and machinery if it is possible or important for a horse to be able to purr.