So it's not only me who thinks (actually told by my father back in 1950) that "Jimmy" was the name for the crow. I've long been seeking a link between this song and the old crow-scaring songs of England and North America. I've found some "crow-scaring" songs that have the same idea. ie. ideas like -- Now that the Master's gone you crows can eat all the corn you want. Cheers, Joy