The identification can be made by looking at the comb, or eventually from the development of spurs on the male's legs (in a few breeds and in certain hybrids, the male and female chicks may be differentiated by colour).
Adult chickens have a fleshy crest on their heads called a comb, or cockscomb, and hanging flaps of skin either side under their beaks called wattles.
Removing hens or roosters from a flock causes a temporary disruption to this social order until a new pecking order is established.
Adding hens, especially younger birds, to an existing flock can lead to fighting and injury. Male tail bending (following successful copulation). Hens will often try to lay in nests that already contain eggs and have been known to move eggs from neighbouring nests into their own.
Individual chickens in a flock will dominate others, establishing a "pecking order", with dominant individuals having priority for food access and nesting locations.Then again, they were known from 1991 to 2012 as "Fox Chicago," due to perceived embarrassment about being on such a high channel number.Nowadays, with over-the-air TV practically dead and cable, satellite, etc.much more common, the joke would be lost on a lot of people.Even so, the joke lost some cache when it was first made in season 9's "No Pot to Pease in", as New World Communications began converting most of its VHF stations (two of which had switched to the network by the episode's original airing on November 6, 1994, with several more switching the following month) that were previously affiliated with ABC, NBC and (mostly) CBS to Fox as part of an agreement with the network done to bolster its new NFL television package.In Australia and New Zealand (also sometimes in Britain), there is a generic term chook The species as a whole was then called domestic fowl, or just fowl.This use of "chicken" survives in the phrase "Hen and Chickens", sometimes used as a British public house or theatre name, and to name groups of one large and many small rocks or islands in the sea (see for example Hen and Chicken Islands).Fowl had been known in Egypt since the mid-15th century BC, with the "bird that gives birth every day" having come to Egypt from the land between Syria and Shinar, Babylonia, according to the annals of Thutmose III.In the UK and Ireland, adult male chickens over the age of one year are primarily known as cocks, whereas in the United States, Canada, Australia and New Zealand, they are more commonly called roosters. although in the egg-laying industry, a pullet becomes a hen when she begins to lay eggs, at 16 to 20 weeks of age.This is the show in which Christina Applegate and Katey Sagal got their starts.This series inspired and popularized a character type: the Jaded Washout, which was actually called "The Al Bundy" at one point. Ironically, the real Fox station in Chicago is actually channel 32, but was a strong independent station before Fox.