Holy Cow!

So I'm doing a little leprechaun research for my sprawling fantasy epic. I dug out my copy of a 1911 book called THE FAIRY-FAITH IN CELTIC COUNTRIES by W.Y. Evans-Wentz. Mr. Evans-Wentz reports, "I very well remember sitting one night four or five years ago in an hotel in Indianapolis, U.S.A., and talking to four Irishmen, one or two of them very wealthy... each man of the four had a story of his own to tell... of ghostly manifestations seen by him in Ireland. Two of these manifestations were of beings that would fall into no known category; a monstrous rabbit as big as an ass, which plunged into the sea (rabbits can swim), and a white heifer which ascended to heaven."