How large are chickens?

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Chickens can vary in size greatly by breed and variety!

Large fowl cochin beside bantam cochin

Large fowl chickens can range from 4 pounds for small hens to nearly 15 pounds for the largest roosters! Bantams vary in size, too. They can weigh from a few ounces for the tiniest seramas to more than two pounds for larger bantams. Generally speaking, bantam versions of large fowl breeds tend to be 1/3 to 1/2 the size of the larger birds.