Hens can fly...not as far as a duck or goose, but they can fly far enough to escape a predator. They easily fly up into a tree.
Chicken coops have historically been built with two doors to allow the hens to escape a predator. When an animal is entering from one door the hens can leave through the other. If the chicken coop had only one door the hens would be trapped inside when a predator entered.
Actually it is the rooster that crows, the hens sometimes make attempts to mimic the rooster but it comes out as a cackle. The reason the rooster crows is to communicate. He will crow to announce to the world that he is on guard and watching over his flock, he crows to let his hens (and other roosters hens) where he is and how to find him. They crow to warn of danger when a predator is spotted. He will crow in response to a hen announcing she has laid an egg. They often crow just to tell the world they are doing what roosters do.
The plural form for the noun chicken is chickens; the plural possessive form is chickens'.
A group of hens is called a brood.
Eggs from battery hens, i.e. hens that are kept in cages (known as batteries) where several hens live together in one cage. These hens cannot roam freely as free-range hens can.
They got attitude dude. Roosters strut to bring attention to themselves, both from the girls in the flock and from any predators that may be lurking around. Truth is, it is a roosters primary job to protect the flock and he will be the first target noticed by the predator. While the predator is fighting the rooster, the hens have a chance to escape and hide. Attitude aside, all chickens (roosters and hens) jerk their heads while they walk because of the way they see. They leave their head still for as long as possible, then move it to its new position while walking forward. This helps them spot any tiny hint of motion that could be a predator (or a tasty insect).
more hens = more eggs + more chickens (possibly more hens) = £££££
The standard collective nouns for 'hens' are:a brood of hensa clutch of hens
no but some big hens
Hens like to eat grains.
No hens can talk.