Following up on Mark Aronson's email from some time ago, Chimney Swift numbers are still building up at the York Street chimney in New Haven.  Today we observed an estimated 3000 swifts coming in to roost from the roof of the parking garage at 150 York.  It was quite the spectacle to see!  After circling above our heads for a while, they started darting into the chimney around 7.50 pm.  For several minutes, swifts darted into the chimney at about 10 individuals per second, while still further flocks up to a hundred strong arrived.  10/10 would recommend. https://ebird.org/view/checklist/S55937011 Many thanks to Mark for letting us know about this site! Severin, Acadia, Alex