Can you take some nice close ups of the window damage with your phone or another camera?
Here are some pics. Three of the kitchen window and three of the bedroom window. The kitchen window had a screen covering where it was hit and although there was a white discoloration of the screen, there was no hole in it. It also appears that the white spot on the screen is about 1/2 inch lower than the hole in the window, suggesting an upward trajectory, which makes me think maybe it was a rock from a mower or blower that struck the window after all. There is no screen where the hole in the bedroom window appears.