A year ago we got six one day old chicks which were a mixture of breeds and were all sexed female. They are our first and only birds and were raised as pets (Southern Hemisphere) We currently get between 3 and 5 eggs a day and only once have we got six, but in reality one of those could've been a late one from the day before. 2 of the birds were white sussexs and up to about 3 months ago we could not tell them apart. About that time at around 9 months of age, one of the white sussexs started to change. As compared to the other sussex, its wattle and comb are huge, its body has become bigger and its feet are a bit redder in colour. About 3 weeks ago I caught it for the first time trying unsuccesfully to crow. (more of a aggh than crow) Now it is crowing of a morning. It has no spurs, no rooster tail or hackle feathers. It is not any more aggresive than what it should be given its size and place in the pecking order and it has not been seen "sexually harrassing" any of the girls. Coincidentally during the last 6 or so weeks we have twice got a whopper size egg, which are about 3 times a normal size and won't fit in an egg carton. Do we have a slow developing rooster or just a confused chook?