Daily Archives: September 30, 2010

Do Siskins Move in Straight Lines?

The winter of 2008-2009 was a huge year for Pine Siskins across the United States. As the dainty yellow-and-brown finches poured across the country, sightings from Project FeederWatch participants documented one of the largest siskin irruptions on record. Now, a preliminary analysis of banding data by FeederWatch leader David Bonter suggests the birds may have [...]