How can we know that the birds we see in the South in the winter are the same ones that come north in the spring? Once John J. Audubon, a bird 1 箍) on 3 legs. The next spring, the birds 4 the bands came back in the very same place. The phoebe, it was learned, spent winter 5 it was warm enough to find food. Today there are hundreds of birdbanders all over America. (love), wondered about this. Every year he 2 (watch) a pair of little phoebes nesting in the same place. He decided to put tiny silver bands(