New York Times: Relentless sprawl, invasive species and global warming are threatening an increasing number of bird species in the United States, pushing a quarter of them – including dozens in New York and New Jersey – toward extinction, according to a new study by the National Audubon Society and the American Bird Conservancy. The study, called WatchList 2007, categorized 178 species in the United States as being threatened, an increase of about 10 percent from 2002, when Audubon’s last study was …