What size is a mature Rhode Island Red chicken?

A mature Rhode Island Red chicken will typically weigh between 5-7 pounds for a hen and 7-9 pounds for a rooster.

However, the exact size can vary depending on a few factors:

* Genetics: Some bloodlines are bred for larger sizes.

* Diet and Environment: A chicken with a high-quality diet and good living conditions will grow larger than one with a poor diet and limited space.

* Age: Chickens continue to grow until they are about 18 months old.

Here's a general breakdown of Rhode Island Red size:

* Hen: 18-20 inches tall, 5-7 pounds

* Rooster: 22-24 inches tall, 7-9 pounds

It's important to note that these are just averages. You may find some Rhode Island Reds that are larger or smaller than this range.