I love chickens! They're one of my favorite animals, and it one of the most common and widespread domestic animal.
Chickens are awesome! And they make really good pets.
I agree! .Studies have shown that the chicken has originated in the Indian subcontinent. 
I didn't know that. They are very common in North America now, but mostly for food.
Chicken
The chicken ("Gallus gallus domesticus") is a type of domesticated fowl, a subspecies of the red junglefowl ("Gallus gallus"). It is one of the most common and widespread domestic animals, with a total population of more than 19 billion as of 2011. There are more chickens in the world than any other bird or domesticated fowl. Humans keep chickens primarily as a source of food (consuming both their meat and eggs) and, less commonly, as pets. Originally raised for cockfighting
source, which resulted in the existence of domesticated farm animals, or domestication of pets which are useful to humans. Different animal species undergo different pathways of domestication although it almost always resulted in one common trait which is tolerance of proximity to humans or lack of fear for humans and increased reproductivity.
An example of the wild ancestor of an animal bred for food source is in chickens. The ancestor of the domesticated chicken, the red jungle fowl, are believed to have an origin in parts of South and Southeast Asia.