I have a 21 week old buff cochin that I have presumed to be a pullet until this week. He/she crowed one time only this week. Never before or since. I very soft crow. He/she also cackled with the hens once when the were getting ready to lay. Of course he/she didn't lay, just did the cackle happy I laid a egg noise with the others. Today no "rooster dance" but jumped on a couple of hens for a second or two, (not enough to do the rooster thing) while they were out in the yard. Do cochin roos just mature really late so that is why no roo behaviors before? Legs look way too long to be a pullet also.