all i can say is when its super cold and theres a foot of snow it makes it a whole lot easyer for the predator hunter.myself and folks that i have talk to generaly don't have good succsess calling from inside the woods,so i guess my answer would be fields.locate fields that are close to wood lots and swamps.try to find areas that have hedge rows and or drainage ditches leading to the woods or thickets.this gives them somthing to run down,but they may bust right across the open field.with the warm temps and lack of snow thats been around all winter,all wild life have been feeding well,this includes the predators.there for they don't need to responed to your calling like they would if it was 0 degrees and snowy.you just have to set up where you can see them coming from as many directions as possible and try to have the wind in your face or going cross your face left to right or right to left.its also a good idea to have a good view of the down wind side of your location.hunting coyotes with out snow is harder but other then that you hunt basicly the same way.one of the differences would be that some of the over grown fields are not packed down from heavy snow.this impedes your visabilty so keep this in mind when setting up on a field edge.try setting up on closly croped or mowed fields.another difference would be that i tend to hunt closer to thick areas when the snow is 8 inches or more deep.its much easyer to see them moving on the thick snow coverd hill sides.