I'm an expat in Thailand and have 20 Rhode Island Red crosses and the seller said they were the best egg producers available in Thailand. They are all hens and about 1 yr old and laying near 100%. now I would like to get a rooster and breed them, preferably another layer type, but so far, impossible to locate here. My [stupid?] question is.....being hybrids, can I cross them with another large breed rooster, leghorn, barred rock or RIR?? I thought 'why not?' but after visiting a local farming college that had roostrs available, the head professor said crossing my RIR with another large breed rooster won't work...... [why?]. He did suggest that I simply use a 'native Thai rooster' which is a half wild mongrel of a bird that has all the bad traits that the RIR hens don't have, but they are broody. he also said that the offspring would be 50% pure RIR and the other half would be 50% pure local Thai. I always thought that when crossing breeds, the offspring takes on the looks and traits of both parents??? Does this guy know what he is talking about??