Migratory Mysteries
The analysis of toenails and feathers may provide clues to where birds, such as song sparrows, spend their winters. Barbara Massey and staff of the Klamath Bird Observatory spent last spring collecting these tissue samples, which they hope will answer this question through analysis of hydrogen levels. As Barbara explains in an article for the Ashland Daily Tidings, birds will pick up different hydrogen levels depending on where they are living. The full article can be read here.
