Well clever me hatched black orpingtons and australorps together and while i tried to keep track of what hatched out of which egg, they did all kind of look the same. I'm now left with one black roo that I am 90% sure is an Orpington, I was hoping someone could tell me any distinguishing features of either breed that could indicate for sure if this boy is an Orp or a Lorp. I can take a photo of him if that would help. From what I have found - the Lorp boys all developed they're combs very early while the Orps are a bit slower, this boy was quite slow. And he is a very hefty looking man, the lorps are a little less plump looking. The only thing that makes me wonder is I think the Orps have rather corse heads and this boy is rather pretty in my books. Perhaps I will get a photo in the morning so others can judge for themselves. Any ideas???