Does anyone know if it's possible to estimate what a glass break pattern would be for a certain impact?

I had my driveway graveled to prepare for a garage. They broke my window with a peice of machinery they were using. I can’t reach the spot from standing and it only broke the outside pane of glass (thus ruling out me or burgulars). The window is right next to my driveway so it seems pretty clear cut but the company that did it is saying it was a bird. First off there is no dead bird, 2nd the break is huge not in small shards. It seems clear to me but I was wondering if there is way to show how certain impacts result in certain break patterns? Hopefully I won’t need to go to court but if I do this type of information would be very helpful. Thank you so much.