My blue Favaucanas are also 10 weeks old! They were all sexed at hatch as being female. Yours has both larger comb than my Celestine, and a redder comb than my Malachite. Here are pictures from Monday, but the funny light means that you can't see comb color very well. My guess is cockerel, if our chickens are the same age.Hi. I came across this thread looking for info and pics of Favaucanas, at different ages. I have a 10 week old that I purchased at 1 day old, and I have suspicions that it is a cockeral, First because of behavior, and since a few weeks ago, his appearance as well. I posted in this forum a couple of weeks ago on a different thread, and got some good feedback, but no one who comment were very familiar with Favaucanas. I am attaching pics i took today. If those of you that raised any, can give me your opinion, I would really appreciate it... Thank you.