i need to ask this .if it does go to being a rooster the eggs would be infertile?
Development can take place in infertile eggs.. however it will not mature all the way to hatch.
He crows, has grown enormous, has stopped laying eggs and is now mounting a hen and pulling out her feathers. What to do?
Hi there, hope you are enjoying BYC!
What you describe is highly unusual, but not impossible... as explained above by other posters.
For me... I WON'T have another hen mounting other hens PERIOD.
First I would take (and show right here) before and after pics, consider submitting her for studying to an appropriate institution.
My end choice... would be putting that bird on the table! Sorry, no free loader... unless they have pet status.
Truly amazing story, thanks for sharing!
FWIW, mounting can be purely dominance related and not a sexual behavior. I did have one actively laying pullet insist on harassing another actively laying subordinate pullet. NO bullies allowed in flock. Setting pecking order, I get. Relentless harassing... equals re-homing with disclosure or a long aromatic soak in my hot pot or someone else's if I'm not able.
A peaceful flock is a happier flock and keeper in my experience. Best wishes no matter what choice you make!
My head hen, a hatchery BR... hasn't laid eggs in a couple years now (and no bloating or other internal laying symptoms) and even attempts to crow on rare occasion..

When I do add a rooster in from my stag pen, they always seek her out first (so far) to win her over (they must be able to tell she is leader) and she does still squat for them once accepted. I was curios to see if she would grow in male feathering after this last molt but she did not. No spurs yet either. Since she rules gently and hangs out on my lap chatting in her soft voice.. she does have pet status as long as she appears healthy and pain free.
While it isn't truly relevant, just an interesting observation.. my local friend has several older (4 years+) hatchery Wyandottes, Rock, Doms, and buff Orps.. many of whom still lay during season that sport good sets of spurs.
It's not Ripley's, but BYC's Believe It or Not??!
Seriously though, sorry for the issues it may be causing for your flock.
