Tov,

There's an artist named Jeffrey Vallance, I think he's from Vegas, in LA now. In '78 he wrote his findings from an 'art piece' he did, in which he bought a chicken from the grocery store, then had it buried in the LA Pet Cemetery. He did some extensive research related to the hen and the cock. You HAVE to see this book. I just bought it a couple weeks ago (in Vegas). The story's called Blinky the Friendly Chicken and it ends with all these facts about cocks, such as this bit from Vallance:

Chicken Sex Change
It has been noted throughout history that poultry can have an abrupt sex change. In Basel, Switzerland, in 1474, a cock was accused of laying an egg. The cock and the egg were burned at the stake with "all the solemnity of a regular execution." In Germany, a superstition still exists that a crowing hen should be killed at once or its owner will suffer bad luck. In 1923, Mr. E. Nicholson of Brompton, England, stated that during the winter his hen laid eggs, but during the summer it sprouted the comb and wattles of a male bird, starting to crow and trying to mate with hens.

"...In 1923, Mr. E. Nicholson of Brompton, England, stated that during the winter his hen laid eggs, but during the summer it sprouted the comb and wattles of a male bird, starting to crow and trying to mate with hens..."

Maybe the resident cock in the henhouse was a bantam.

again quoting Jeffry Vallance on the subject of all the chicken colloquialisms that have survived to this day:

Cute baby chicks are symbols of the spring season. The term "chick" is used for a young, attractive girl. A young boy or girl who has been exploited sexually is called a "piece of chicken." In La Grange, Texas, [as well as Pahrump, NV near Vegas] there was a whorehouse called the Chicken Ranch, its logo a rooster kissing a chicken. An older man interested in having intercourse with young boys is referred to in certain circles as a "chicken hawk."
The cock (rooster) is an obvious male symbol, and the word "cock" has become synonymous with the penis, due to the resemblance of the wattles on the rooster's head to the human scrotum, especially in its proximity to the phallic beak. Another slang word for the male organ is "pecker," denoting the pecking action of the beak.
In contemporary sex-toy stores can be found a "tickler," a rubber condom with the head of a rooster at the end, its beak and coxcomb serving as the semen reservoir. The word "cocktail," meaning an alcoholic beverage, was formed by joining "cock" and "tail," slang for the penis and female sexual organs, respectively. The consumption of alcohol is regarded by some as a substitute for orgasm. Originally, the "cock pit" was an enclosed arena for cockfighting. In nautical vessels, it is the sunken space toward the stern used by seamen to steer. In the airplane, it is the space for the pilot. Cocktail bars located near airports are often called "The Cockpit." In foul language, the vulgar term "cockpit" refers to the vagina; pilots can sometimes be seen driving with bumper stickers that read, "Pilots do it in the cockpit."