I have 4 emus and I am not certain of their sexes but im almost certain i have both sexes going by the sounds they make. But 2 were vent sexed by a farmer i bought them from as females when they were chicks. They will be 3 years old this spring and I was very much expecting to get eggs from them this season but so far nothing. Around sept-oct they become aggressive toward each other and frequently chased each other over the fence and i noticed alot of pulled feathers around that time but no breeding. They stopped chasing each other around the end of October and started behaving normally again. Im thinking perhaps they have worms because i have never wormed them because i have never noticed parasites in their stools and I was always told not to worm animals unless they have worms. Im going to worm them after Christmas and see if anything changes. Is it to late in the season for my birds to start laying?