Pen (enclosure)
（重定向自Sheepcote）
![Sheep near a dry stone sheepfold, one of the oldest types of livestock enclosure](/Images/godic/202502/10/Sheep_Fold5434.jpg")
A pen is an enclosure for holding livestock. The term describes multiple types of enclosures that may confine one or many animals. Construction and terminology vary depending on the region of the world, purpose, animal species to be confined, local materials used, and cultural tradition. Pen or penning as a verb refers to the act of confining animals in an enclosure.