I don't know if this has been said, and I don;t have time to read through all the threads, but I also think doe density in some areas plays a part in it. For instance I got a picture of a fawn with spots on 11/6 in Rutherford County and I saw a picture today from 11/11 of a spotted fawn.
I'm not 100% sure about the gestation period for deer pregnancies, but I think it is about 6 months. A spotted fawn in Dec would have to have been dropped August or September... that means the doe would have had to have been bred in February. I see bucks chasing In Mid Tn all the time in Feb. so it doesn't surprise me.
Many will say we need older bucks to have rutting like they do out west and denounce that we need to shoot more does, because it will decimate the herd, but I think the # of does is why we have a trickle rut in Mid Tn almost every year. You have to figure if does generally drop fawns in the middle-end of June, and there are clearly some dropping fawns a month later, then a few more a month after that and so on and so forth, there is some breeding going on into Feb. Mar... Also when I see 8-9 does in a pack on heavily hunted public land, we probably have too many does.