Proper leading of the target is also required, and with birds crossing in front of you that's pretty hard in my experience (you have to aim your gun at where th

Proper leading of the target is also required, and with birds crossing in front of you that's pretty hard in my experience (you have to aim your gun at where the target will be when the shot gets that far out; shooting birds you've just flushed into the air, traveling away from you is lots easier, e.g. turtledove vs. quail).