Nursing fawn

We've seen quite a few things out the back window since we moved here but the other day tops it for me (yes, even more than seeing my fox).  I was watching a doe move along the fence and here comes a fawn out to join its mom.  I've seen that many times before.  But then the fawn lunged under mom and started nursing.  So I quickly shot some video not thinking I could catch a good photo.  Quite a sight...the fawn was just wagging its tail.