As dusk falls, hundreds of Vaux's swifts swoop into their roosting spot inside an unused chimney at a community center in Roseburg, Ore., on Sept. 21. The flock of Vaux's swifts, also known at chimney swifts, use the structure every year for a few weeks during their annual migration through the area.
Birds of a feather flock together
As dusk falls, hundreds of Vaux's swifts swoop into their roosting spot inside an unused chimney at a community center in Roseburg, Ore., on Sept. 21. The flock of Vaux's swifts, also known at chimney swifts, use the structure every year for a few weeks during their annual migration through the area.
