Here's a method of roasting a bird that's particularly of use to those on low/no sodium diets. What's amazing is it doesn't taste as if no salt was used and is lovely for a 2nd meal involving chicken salad or similar:
No Salt Roasted ChickenI've cooked it on a covered charcoal grill by banking the coals on the sides and leaving an aluminum pan in the center. Then I place a CI griddle or skillet atop the grate and follow the above recipe. I also use thermometers that give external and internal temperatures. This allows me to bring the external temp up to 475 and the internal to 160, my preferred poultry cooking temp w/ no guess work.
You'll also find a link for J.Pepin's way of roasting w/i the article, which is also good.
Most any roasting recipe/technique can be converted to any form of grill.