I have a RIR roo and a Banty hen. The hen is older, the roo is only about 4 months old. The hen went super broody and won't budge, unless you actually grab her...after getting pecked to death. She's very defensive and won't move for anything. She's sitting on 10 eggs. We candled them the other day, but can't really tell much...don't really know exactly what to see at 2 weeks, even after looking up images. Guess we'll wait to see what pops out, if anything. But we're wondering if the 2 different breeds and sizes would actually mate and what might be the outcome?