Triangle UFOs Over Southern Ontario is Birds Under Analysis

I came across a great analysis video posted to reddit by the following user: I could see the birds wings flapping because of it and I commented saying so, however I got quite a few comments saying that it couldn’t be birds. So I did some further review and analysis on the footage attempting to show the wing flapping. I also added in a capture from Jason Suraci, showing a bunch of birds which eventually formed into the same kind of triangle shape. Source Link from CacheLack :