Derek's outta here...in a month

I just heard a lot of noise coming from the duck area. Immediately I think its the ducks chasing Mandy so I ran over. But instead I saw Ducks sitting around and Derek chasing Young Boy. Young Boy looks pretty quick on his feet, so I hope that Derek can't catch him and kill him. I told Derek "you're so dead in a month mate" and many other things - why do you act like that? no one likes you; Old Boy wouldn't do that; you're numbers up Derek. I'm thinking that maybe that smaller black chicken may also be a rooster. It looks quite tall, but time will tell I guess. I've never been good with telling the sex of animals.