4 mo pullet pulling out her tail feathers. Is she grieving?

[MrPaw]

Esther, my ISA Brown pullet, is pulling out her long tail feathers. I caught her doing this yesterday. She is not eating them, but there is mess in my yard (they free range every day). This started after we had to re-home a "she" EE two weeks ago, that started crowing almost all day long. Esther was his favorite. They were always together. Could my little Esther be pulling out her long tail feathers as a sign of grief over losing her best friend?

 

[Wyorp Rock]

Esther, my ISA Brown pullet, is pulling out her long tail feathers. I caught her doing this yesterday. She is not eating them, but there is mess in my yard (they free range every day). This started after we had to re-home a "she" EE two weeks ago, that started crowing almost all day long. Esther was his favorite. They were always together. Could my little Esther be pulling out her long tail feathers as a sign of grief over losing her best friend?

Can you post some photos?
Look to see if there is new growth (pin feathers) coming in to replace the lost feathers.

 

[MrPaw]

Can you post some photos?
Look to see if there is new growth (pin feathers) coming in to replace the lost feathers.

Thank you for responding. Yes, there looks to be new growth.