Sex-Change Chicken: Gertie the Hen Becomes Bertie the Cockerel

Under the right circumstances, a hen can actually transform herself into a cock.

Can a Rooster Lay an Egg? - Cackle Hatchery

What are some interesting facts about black chickens? - Quora

26 Sounds that Chickens Make and What they Mean - Flip Flop Ranch

Henrietta is a Henry! I heard his crow this morning! I tried to record it

Are there any mammals or birds that switch their sex? - Quora

Is this a problem? : r/BackYardChickens

How To Tell A Rooster From A Hen (Is it a Boy or a Girl?) - The

Sex-Change Chicken Gertie The Hen Becomes Bertie The Cockerel

Birds To Dinosaur: Python Vestigial Pelvis, Femur and Spur

Sex-Change Chicken: Gertie the Hen Becomes Bertie the Cockerel

Birds To Dinosaur: Python Vestigial Pelvis, Femur and Spur

Ellie wasn't chicken about coming out as a rooster

A sex reversal hen has changed into a crowing rooster

Image Gallery: Stunning Dual-Sex Animals