my former egg-laying hen is a trans-rooster?!

chickima

Chirping
6 Years
Sep 24, 2013
28
3
77
He crows, has grown enormous, has stopped laying eggs and is now mounting a hen and pulling out her feathers. What to do?
 

Peppercorngal

Crowing
Feb 5, 2018
1,833
4,120
301
Feather Falls, CA
It is possible, (I don't know how rare) for a hen to transform into a rooster. It's when the left ovary stops working and the right takes over. If you are worried about your hens being bullied you can try to isolate your now new rooster! It's a hormonal thing, unless you can find a vet to administer hormones to make a hen again, you really can't do anything. Good luck! Here's an article to read: https://www.livescience.com/13514-sex-change-chicken-gertie-hen-bertie-cockerel.html
 

Cryss

Free Ranging
Nov 12, 2017
3,929
9,550
707
Northwest New Jersey
How long was this chicken actively an egg layer? How old is this bird? How many other hens do you have? How old are they? Is it not possible one of them has been laying the eggs since they usually all lay in the same nest?
 

chickima

Chirping
6 Years
Sep 24, 2013
28
3
77
How long was this chicken actively an egg layer? How old is this bird? How many other hens do you have? How old are they? Is it not possible one of them has been laying the eggs since they usually all lay in the same nest?
The rooster is about 2 years old, and we believe it was laying eggs for some 5 months once we adopted it. We saw it laying its blue eggs...Thanks for asking...
 

chickima

Chirping
6 Years
Sep 24, 2013
28
3
77
It is possible, (I don't know how rare) for a hen to transform into a rooster. It's when the left ovary stops working and the right takes over. If you are worried about your hens being bullied you can try to isolate your now new rooster! It's a hormonal thing, unless you can find a vet to administer hormones to make a hen again, you really can't do anything. Good luck! Here's an article to read: https://www.livescience.com/13514-sex-change-chicken-gertie-hen-bertie-cockerel.html
Thank YOU immensely...
 

sourland

Broody Magician
Premium member
10 Years
May 3, 2009
91,812
160,943
1,837
New Jersey
Yes it can happen. I have been around chickens for 70 + years and have seen only one instance of this. Happened in a friend's flock where an aged RIR hen presented as male. Male specific feathering, crowing, and mounting hens. Before we could kill 'her' and check the ovaries a fox caught and ate 'her'.
 

elmo

Crowing
10 Years
May 23, 2009
4,895
205
306
DFW
Yep, been there, done that.

Our hen Pokey laid eggs, brooded and hatched out a clutch of eggs, then in her middle years developed an internal infection that shut down her functioning ovary. Antibiotics cleared up the infection, but it took a year or so for her ovary to resume functioning. During that interim, she acted like a rooster, grew rooster like saddle feathers, and even started croaking out crows.

Later, her hormones settled down and she transformed back into a hen and started laying again.

Our vet really enjoyed having her as a patient since it was the first time he had seen this sort of thing personally in his career.
 
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