http://www.thetakeaway.org/2009/apr/02/birding-gets-a-digital-upgrade/ http://www.podtrac.com/pts/redirect.mp3/audio.wnyc.org/takeaway/takeaway040209j.mp3 Birding gets a digital upgrade http://www.thetakeaway.org/2009/apr/02/birding-gets-a-digital-upgrade/ http://media.wnyc.org/media/photologue/photos/tt/bird-cards-in-filing-cabinet.jpg true 5919 segment Starting in 1882 and continuing for almost a century, the United State's Bird Migration Program collected two-by-five notecards from bird watchers around North America. Today, these long preserved cards — did we mention that there were over six million of them? — are being dusted off, in http://media.wnyc.org/media/photologue/photos/tt/cache/bird-cards-in-filing-cabinet_26_square.jpg http://media.wnyc.org/media/photologue/photos/tt/cache/bird-cards-in-filing-cabinet_26_square.jpg