Finding their way south
At seven on a brisk September morning last year, ecology professor Martin Wikelski piloted a small aircraft tracking white-crowned sparrows through southern New Jersey.On the ground, postdoctoral researcher Richard Holland and his team followed close behind in two vehicles that looked like something out of a "Star Wars" movie, equipped with antennae and tracking apparatuses.Now, more than a year later, their research has shed new light on the more sophisticated navigation ability of adult birds.




