(Portland OR)  --  The public viewing of Vaux's Swifts at Chapman Elementary School has been cancelled for the second consecutive year because of the COVID-19 pandemic.  The Portland Audubon has announced it's still too risky to allow crowds at the school to watch the swifts as they return to their roosting spot at the school's chimney.  The Vaux's Swifts migrate to Oregon from Central America every year and then return in September.