He towers over the others. My daughter named him Sunshine, I may rename him Hulk.
The clerk at the feed store told me they were all the same age, and they were the same size when I bought them.
Thank you for your help!
Cornish Cross are broiler hybrids and have been modified to the point that they go from hatch to processing weight in 8 weeks - that is why this bird has gone from being the same size to being so much larger than the rest of your chicks.