We put out about eight in a small off shape circle,one on a post etc,mostly facing into the wind,make a nice hide,cover up and keep still,usually gets us small numbers for a morning,a broken egg is apparently good for drawing their attention as is a half gutted rabbit,an owl is also supposed to be good but I believe they just dive bomb them so bit shotgun that one,it tends to depend on what they are feeding on and what have you but the basics should get you going,my experience is limited but is working so far and I learn a little each time,someone who does it more often might have more specifi