Social media's window on the animal kingdom

articles.philly.com - Nature-watching - an outsider's hobby, right?Geese crisscross the sky, eagles nest all over Pennsylvania and New Jersey, hawks and falcons are on their way, and elk whistle ghostly in Benezette.But birders, hunters, conservationists, and animal enthusiasts of all furs are also turning to Twitter, Facebook, blogs, apps, and a proliferation of "hawk cams" and "eagle cams" to get their beast on. Here, as in so many realms of human life, social media help people build communities around shared interests.