Counting Chimney Swifts...

 

Photos above and below by BarrytheBirder

These Aurora, Ontario, ladies are Chimney Swift counters, faithfully keeping track of the many Chimney Swifts that roost in a large chimney, atop an older residential building in the centre of the York Region town.   On this recent nightly occasion they counted a record 144 Chimney Swifts making an evening entrance into the residential property's chimney.