I actually have a experience that hopefully will answer that question. Back several months ago when I was at my girlfriend's house (now ex), for a few nights - She lived pretty close to a farm where there were several cows and calves. The owners weren't there for several days at a time so not sure whom was suppose to watch. There was one particular calve that my then-gf liked. I woke up in middle of night to sounds of cows freaking out. I didn't think much of it so went back to sleep. I took her kids to school so she could sleep in and noticed what was left of the calf in middle of the field; I was curious on to what happened to it and I noticed drag marks as well as several coyote tracks (appeared to be anyway).