For the last few weeks these two crazy cardinals have been repeatedly intentionally flying in to all the windows across the back of our house. It goes on for hours at a time and can get a little maddening. We usually love to catch sight of the Cardinals in our yard as they are not nearly as common in Minnesota as they were at our previous home in Indiana, but these guys are starting to get on my nerves. A little online research reveals that when Cardinals do this they are probably try to scare away the other Cardinal (their reflection) from their breeding area. I edited down this video to the action parts, but everything you see happened within the 2 and a half minutes of the original video.
And yes that is what Minnesota looks like sometimes at the end of April.
At least they are not skunks, and I am not supposed to shoot at them.