On the morning of September 16th on the Millersville Biological Preserve, we got to see our first species of migratory birds making their way through campus.  We saw small flocks of red-eyed vireos, black-throated green warblers, eastern wood pee-wees, Yellow-throated vireos (picture below by Ryan Schain, MA, Groveland, May 2012), chestnut-sided warblers as well chimney swifts flying overhead.  We also got good looks at cedar waxwings.