I think it is laughable that you would say a 1 1/2 year old buck is easier to kill then a motherless fawn.
No matter how laughable you may think it is, in Ohio there is no doubt that a 1 1/2 yr old buck is the easiest of all to kill. I believe the 60% to 80% harvest ratio that Cornfed posted for his state is very close in Ohio as well. I think that it is true for most states, I will look for a source to back that up for those doubters out there.