Coyotes are mostly scavengers but they will definitely pick off small pets if you leave them around. When I was biking in the aqueducts in Westchester I had one randomly Chase my bike until it saw a rabbit that was near my path and decided to switch targets that at I was so damn confused lol. I also had one try to hop across traffic to try to attack me but gave up when traffic was too much. It's really weird when they want to engage because they're half the size of my dog and I'd consider him on the medium to slightly large scale for dogs as he's around 80lbs