Hi folks! First time posting, I'm really new to chicken ownership! I just got a tiny flock of 3 d'uccles from a breeder...she hoped they were all girls, but this week, we have started to hear a crow. I haven't yet caught them in the act, so I'm not sure which one it is (or even which ones - two are much larger than the third...can she just be a runt? or that the telltale?) I live in the city, so a roo is a no no and the breeder is happy to swap, but which do you folks think? Thanks in advance for the help!