They don't have bite marks on them. We're thinking that one of the cats that was hurt was in the coulees (just outside our backyard, they're like hills) and then the fox/coyote/raccoon ran after her and then she ran up the fence to get to safety, in the meantime, spraining her paw. And then the other cat must have been on the west side of the yard and ran mad as **** to get to safety as well, and caught his ear on something. Who knows what happened! The droppings we found were fresh, not like right out of the oven fresh, but it wsn'tthere earlier that day and my parents were both out in the yard most of the day until supper time.