Chimney swifts swoop across the Raleigh skyline in 2011.
Chimney swifts swoop across the Raleigh skyline in 2011. Robert Willett News & Observer file photo
Chimney swifts swoop across the Raleigh skyline in 2011. Robert Willett News & Observer file photo

Chimney swifts: Awesome autumn aviators

September 27, 2015 04:00 PM