If that is indeed the case I would think the buck doe ratio is worse than you think. When the buck doe ratio is skewed, there are typically not enough bucks to breed all the does. When this occurs the does will come back in to estrus 28 days later and do that for several months until they are bred. This phenomenon causes the fawn births to be staggered. What happens is the coyotes have a constant supply of fawns for several months. In properly balanced ratios the fawns are dropped almost all at once. This keeps many fawns from being predated upon because they get their legs rather quickly and can typically avoid predation after a few weeks. There's only so many coyotes out there, and they won't kill deer for fun, so they only take what they need by and large. Anothe good indicator is still seeing fawns in october or november with spots. This indicates a late birth also. Fawns need a body weight of 60 pounds going in to winter or they risk survival over that first winter.

Another revelation was how many were taken by black bears. In PA I would think that would be the case also seeing how there's a black bear behind every tree!!.