Bird watching is more of an exact science than you might think. Case in point: one pair of binoculars works better for watching one kind of bird while another is ideal for viewing a different kind of bird. Moreover, certain features such as “eye relief,” “magnification,” and “field of view” are critical for birders and vary in each pair of binoculars. And you thought one pair was plenty! Your favorite bird watcher will welcome a new pair of binoculars to add to their collection.