Capons:
“A capon is a castrated rooster whose testicles are removed through a surgical procedure. Because testosterone is also removed, these roosters are often less aggressive and are fatter than regular roosters, making them a sought-after chicken for consumption.”
http://www.ehow.com/facts_5517109_difference-between-chicken-rooster.html
the Capons Go Marching Along
Where I grew up our local butcher had a much earthier and to-the-point definition of a capon.
“Because testosterone is also removed, these roosters are often less aggressive and are fatter than regular roosters, making them a sought-after chicken for consumption.””
It’s all the Oprah and candy corn that makes them blow up tio Rosie O’Donnel proportions.
Some years ago, I purchased a capon at a supermarket. Since few of these are sold, the cashier didn't know what it was. I explained that a capon is to a rooster what a steer is to a bull. She laughed her head off.