My ideal night,is cloudy, with a New Moon,not full,overhead,or underfoot,with a slight wind from N.W.with a rain or snow headed our way.But many nights,they will turn it on,or shut it off,just as fast.You just need to be out there when they do.Another thing I like to see is a lot of house cats along the road ditches hunting.One thing I don't like to see is deer bedded down.I've coon hunted for years and have spent 100's of hours out after dark,all year long.I think moon phase and position,are a major factor in animal movements.When you catch a good night,you had better stay with it,an pour the coffee in ya,because the 'magical night' doesn't come around all that often.