Dan is measuring this female Sharpie (sharp-shinned hawk) to see how long her wing is. He enters this data along with her band number on the chart under the pliers. Only about 1% of hawks are re-banded, but this still provides valuable data to scientists. This data including weight, sex and age (after hatch year, immature) will go into a database. You can also see a bander's cryptic sketch as well.