I always try to tie hunting into something... In this case it just came to me...Ah Star Trek. Right at the beginning. The commentator says something to the effect: "To Go Where No Man Has Gone Before!" Of course...Predator Callers we or someone knows the lands that we are going to hunt on. However before you go to those lands? You don't need to go blindly...See predators will use the wind... To go to your hunting lands and not knowing which way the wind is blowing is going to cause certain failure...It's like going somewhere that no one has ever gone before. Also if the wind is gusting or variable (shifting, inconsistent, directional) you need to know that too....
What I like to do is go to http://
www.weather.com/ Do the hourly forecast after I keyed in a city or the zip code to see where the wind is blowing from and the velocity of the wind... I have a bubble compass on me.. Pinned on my hunting coat or jacket right about where my navel is. I can look straight down at the bubble compass, illuminate it with my scanning light and make sure I keep the bearing of what was reported to me on the weather channel hourly forecast key...
If your lucky like me the weather channel TV will give you your local weather update on the 8. In my case 8 min after, 16 min after, 24 min, 32 min after etc etc etc...Ah that where you will learn if the winds are going to be variable, shifting etc...
Lastly....if I can't get to a media I will go outside and look at a giant flag. Ah the bennies of living by a insurance building that has an illuminated Old Glory hanging up on a hill. Just watching it too....let say...8 minutes of staring at it outside the window will tell you if the wind is directional or variable and shifting...Then going from point A's to Point B's check McDonald's they always have an illuminated Old Glory waving in the breeze. Also if need be...Stop along the road or go into the parking lot of Mickey D's and take a compass bearing from that flag.
If the wind is directional then set up somewhere down wind and cross wind of the main beam of the speaker or caller at the correct distance based on the animal your going to hunt. If the wind is shifting then your best bet to see predators is to post near the speaker... You don't know the direction the predators are going to come in. However they will get in direct line with the loudest part of the speaker and you might get a shot before they smell you..
Below I will post just where the shooter should set up for each target animal.