I have 4 black australorp hens that are a little over 3 years old now. All 4 are egg layers, I have video proof of all 4 of them laying eggs over the last couple years so I know for a fact that isn't some mistaken rooster identity thing.
Last spring I bought 3 buff orpington pullets from someone local. 1 of them ended up being a rooster, he's a great rooster, takes great care of his flock and is very kind to all of us. He was a late bloomer though, he didn't start crowing until almost 30 weeks. Around week 20 one of my australorp hens starting crowing, not your typical cock-a-doodle-doo sound more like a combination of a rooster and a goat, just screaming. She will jump on something high and "crow" every morning. As my rooster matured she slowed down considerably, however she is still the top bird. She will puff her neck feathers, occasionally correct him and he takes it, like he knows his place. She will crow a half dozen times sporadically throughout the week.
The weirdest thing too is over the last 6 months she has started growing spurs. They're about 1-1.25 inches long now on each leg.
She still lays eggs, but rarely, maybe 4-5 per month instead of 4-5 per week.
Is this some mental illness, some hormonal change, or did acquiring a rooster when she was 1.5 years old do something to her that caused her to evolve?
Has anyone seen this before?