Commuting with crows: Cyclists follow thousands of birds at twilight

Carmen Rosen always wondered where the thousands of crows go every night when they fly off together at dusk and decided the best way to find out was to follow them. The Vancouver bird-loving artist is organizing the annual Crow Roost Twilight Bike Ride this weekend, following the 20,000 birds that fly from around the Lower Mainland every night to roost on the banks of Burnaby's Still Creek.

from CBC | Express Offbeat News http://ift.tt/2Gd5sKv