I have some chickens whom I KNOW are all Buff Orpington mix...they were hatched here at the house from my first roo, Billy. But, 3 of them look like triplets...all look very much like BO hens...but I don't know who their moms were. That's what I'm trying to find out. The choices could have been: SLW, Bl. Australorp, RIR, and Light Brahma. None have feathers on their feet...so I assume, rule out Brahma. One has black legs (otherwise looks full BO), the other 2, Feather and Daredevil...look full blood BO. I have 2 red roosters whom I assume are BO/RIR. Then one rooster, Goldie...looks like the SLW's feathers...but golden laced...but it's face is identical to my one black australorp, and it doesn't have a rose comb. On the 3 in question...2 have regular combs, one has a rose comb. The black footed one's comb is regular. I'll try to get better pics...but I hope I was descriptive enough right now to get some sort of ideas. It's just one of those "that would be neat to know" things. ***ETA: On the one rooster that we thought was a SLW mix...I forgot to add...not only does it not have a rose comb and look like my Bl. Australorp in the face...it has some white on it's "earlobes" like my Bl. Australorp that it looks like does, if that helps. Also the one girl with the rose comb does have some speckled black on her neck feathers...if you look at my post here: https://www.backyardchickens.com/forum/viewtopic.php?id=30264&p=2 you'll see her by the SLW and the Roo in question in the bottom picture of my post.