Mark Obmascik has been a journalist for two decades, most recently at the "Denver Post, " where he was lead writer for the newspaper's Pulitzer Prize in 2000 and winner of the 2003 National Press Club Award for environmental journalism. His freelance stories have been published in "Outside" and other magazines, and he has aired numerous political stories on public affairs and television news programs. An obsessed birder himself, he lives in Denver with his wife and sons.