Ken KefferNaturalist and award-winning environmental educator Ken Keffer is the author of nine books, including Earth Almanac: Nature's Calendar for Year-Round Discovery. Keffer is a frequent contributor to Birds & Blooms magazine and The ature Conservancy's Cool Green Science. He lives in Bloomington, Indiana, where he and his wife run a Wild Birds Unlimited store.Visit him online at KenKeffer.net. Read More Read Less