Hopefully this is easy. She was part of a McMurray "rainbow layers" special and was a bigger yellowish-orange chick and I have about 4 of them. They are GIGANTIC so definitely a heavy breed. She's 10 weeks old (100% positive on the age), 3.5 lbs and her voice has already started to change. She dwarfs the SLP cockerel in the photo who is 2 weeks older than she and she is about 3x the size of the BSLs I bought at the same time. There were also a few smaller variety chicks in the batch that are the same color as the girl below and the same size as the BSLs which I assume are Production Reds What breed is this? TIA!