I'm wondering about these two I'm picturing here. I have two buff cochins, one of which is no doubt is a pullet in my mind. The other I'm not sure. No crowing or anything and is just as friendly as the other but its comb is slightly larger and redder. And as for the Austrolorp I've asked about this one before and was told possibly roo but I've also talked to a few others online who said females can get large combs and early. I just have better pictures of the whole body and its a little larger now so I figured roo vs. pullet argument might be easier... They are all 6..almost 7 weeks old ( this coming sunday) The cochin in question is in the front. My other one I'm positive is pullet is in the back to the right. Here is a good shot of the Austrolorp. Thanks!!