I will tell you my experience. Coyotes will kill adult deer, I have seen it and the evidence of them doing it. I have seen trail cam pics of them taking down deer.
I hunted a 20 acre parcel between 2 subdivisions that was loaded with deer and after 4 years there are nothardly any deer. If they are taking fawns, eventually that loss of an age class will catch up with your herd. After 6 years, the herd is hurting.
The homeowner at said property asked why her cats disappeared after I found the evidence of yotes, I set 6 traps. Caught 4 the first night. Hopefully by taking more of the yotes out the herd will bounce back.
ANYONE who thinks that yotes don't hurt a herd, you are fooling yourself. Wait a few years.