Funny you should ask ......
Last weekend I was cleaning out the freezer. There were two birds in there from last November. You know, when Fred Meyer's has that "spend $100 and you get a free turkey" sale in early November, somehow we end up with a few in the freezer. Anyway, I took one out and when defrosted, I tried it on my new gas Brinkman 4 burner grill. Of course its too large for the rotisserie, so, I put it in an old cookie sheet with edges about 3/4 inch high, set it in the middle and fired up the two end burners. I kept the heat between 275 and 300 degrees. Basically I left it alone for several hours. I did not cover it, but I did have to baste the fat and juices a couple times.
I was not too concerned about this bird to be honest. I just wanted to cook it to get it out of the freezer, and to try one on the grill. I have to say it came out wonderfully moist and tasty. Of course, the skin was a beautiful brown color and quite tight. But, the best part of it was the juice I collected when I basted, and the brown stuff I collected when I cleaned the pan. That stuff produced some of the best gravy I have ever made, not to mention turkey soup the second day.
I think I would do it again and, keeping with my short lived tradition, I will not fuss much over it.
I hope you are enjoying the great weather. I welcomed my first Grandson into the world last week at Providence and am still in that "ga ga" state of mind. Things are good here ....