Cocks don’t have cocks. In 97% of bird species, the males don’t have penises.
Most male birds, including chicken and quail, have no penises, but ducks and geese have coiled penises that can measure up to 9 inches in length. These retract when not in use.
Why Many Birds Don’t Have Penises?
The fact that most land birds have no penis means that females have more control over their reproductive destiny. This could theoretically allow them to be more choosy over their mates, and select higher quality males overall.