More times than not..... Hunting was a "group" endevor. (as in Ron's painting)
Many things were also in account such as prayers, "medicine" and such. Remember, the Indians hunted for a living. Groups could be just a few, or many... Usualy hunts consisted of organized drives. However, anytime they were in the woods, they were "hunting"... Either for animal or human prey. Looking for sign, both 4 & 2 footed, was a daily habit. Their lives depended on it. When they came upon game, it was killed, for they always needed to eat.
As for the fetal deer... Hunting was a yearlong endevor, done as needed, and pretty much daily. The does were not targeted because they were "slow"... They were killed because they were "meat". The unborn fawns, were the prize in the CrackerJack box. (Nothing was wasted)