One at a time Steve. The sound of the shutter falling in rapid succession makes me nervous:^) Many times I simply come up short due to fleeting light, moving shadows, etc. I basically "frame" the image with the viewfinder, leaving a space for me to crawl into the scene. A little trial and error plus some luck and I sometimes get what I want, capturing a moment just as I remember it happening a bit earlier. Composition is the easy part, The biggest challenge is being ready when the light is right.
One thing about photographing turkeys. I spend the time necessary to dry feathers of any moisture, be it water or blood, and stroke any unruly rows of feathers back to life. Some people mistakenly feel that they need direct light to bring out the iridescent qualities of the feathers. Not true, in fact it can cause a lot of exposure problems due to glare and harsh contrast. An even light is much better, so I try to shoot in low light or within large shadows. I also experiment with various exposures. When in doubt it's better to underexpose a bit.