Up to 100 birds migrating along Don Valley
by Sarah M
(Toronto, Ontario, Canada )
About 5 years ago I moved to a neighbourhood that edges onto the east side of the Don Valley, and I've noted that a couple times now I've seen a large group of vultures that appear to be migrating.
Upon research I have found that indeed, Northern populations of the Turkey Vulture do migrate south, often in very large groups.
When I've seen them, it's easily a hundred or so birds gliding along the eastern ridge of the Don Valley, which makes sense due to the thermal updrafts that come off the valley.
This year I got some video of the group, as I was able to stop on my bike and pull out my phone.