I would appreciate any wisdom that anyone can offer. Attached is a photo of a 6-10 hour old calf (not sure as it was born at night and I found it the next morning). You can see the wound in the head. This is a hole into the frontal sinus. There is no clotted blood or dirt or debris around the hole (of course the mother was licking the calf). I assumed that the calf was stepped on. But, I've only seen one of my cows step on a newborn calf (and that was an older, not-tame, defensive red Limousine that was coming after me when I got too close - it stepped full weight, dead square on the chest -- calf never had a problem to my amazement). This is the 7th calf from this cow, and she is a very gentle, not-nervous Angus. We have minimal problems with coyotes, and the herd was around her so I doubt she was protecting the calf. No vultures were around either. Has anyone else seen this? Any concerns it was congenital? Is it common to have a mother step on a calf? Thanks