Fellas, there are a bunch of folks in this one who don't really understand coyotes. There are periods where they are active all day long. I've had groups howl at me mid day, I've called in large groups, mid day. A hungry, or territorial coyote isn't going to be deterred by the sun. They are primarily nocturnal, but if they are desperate, or hear a sound that trips their trigger to feed, they are on their way. The only reason coyotes don't eat dozens of people every day is because they know they aren't actually big enough to bring you down, but make no mistake, you break a leg a few miles from home and have to crawl back, and they get to you first, you're probably not coming home. They have killed and consumed plenty of people already. There is only one absolutely certain documented recent case of them killing a human, and that was a college girl in Canada a few years back. There have probably been thousands more, but when all they have are stripped bones for remains, there is no way to know what the cause of death is, so they just assume they died of some other cause, and the coyotes get a pass. This is going to become way more common in the next decade. Their populations are exploding and fur is useless, the trapping art has been forgotten, and they are learning how to deal with urban humans.