Your right Bill about the coyotes, I took these picture in a deer yard about a 1/2 mile from my house this past january. I have 4-5 deer yards within 1/2- 3/4 of a mile from my front door.
My belief is that the coyotes key in on the deer as a main stay through the winter months. Not all deer that are found such as the one in the picture below are taken down by predators. Disease, exposer and just plain lack of a good nutrition base diet during the hard winter months take its toll.
The coyotes clean up what mother nature deals out, and like any other animal the coyote will conserve its energy by scavenging in the deer yards.
This one happened to be taken by coyotes, as I could see in the snow how they ran it down in the yard.
Heres a well used deer run in the middle of a deer yard
I feel its not just coyote predation on the herd, but also the compatition for food. Our mast crop is on a ( about )3 yr. cycle and the
huge numbers of turkey's that have reastablished in the east are eating the crap out of mast crops.
EVER SEEN BIRD THAT WASN'T EATING they are constantly eating and they'll pick and scratch a hillside in know time flat.
my photo's got mixed up but here they are.

