I think coyotes are target what ever they come across when they are hungery. Their very ( opertunistic)? sorry i cant spell good as an Auburn graduate. grinIf the come across a sick or wounded deer they eat it. If its a fawn they eat it, if they can find it! So to an extent they dont Discriminate. As to with one= a single coyote probably doesnt want to take down a large , health aniamal, but a pack might. Here we go into different places. So places have small packs/ some have large packs. The will target anything , depends on the season. Fawns are sometimes easey marks, depends on the mother. I once did a large cattle job, the ranches did some AI ? injections ?/ and had lots of calfs dropping in a few short days of each other. The rancher witness coyotes following the cows waitiing for them to give birth. They would eat the after birth and calve. The first day a shot a coyote will i was setting traps, this coyote was laying down on a terris row/ hump watching a cow about to give birth when i shot it! Coyotes are very smart aniamal! I respect them but hate them at the same time! Point is coyotes will go after what ever they learn how to kill. So times I wounder if thats heratatery or a taught or learned behavior? Does a mother coyote teach here young how to specalize own cattle calfs?