The image shows cow dung drying on a fence. Cow dung, also known as cow pats, cow pies, or cow manure, is the waste product (faeces) of bovine animal species. It is the undigested residue of plant matter that has passed through the animal's gut. 

Here are some common uses for cow dung:

Fertilizer:
Cow dung is a good source of fertilizer, rich in minerals like nitrogen and phosphorus. It improves soil texture and helps retain moisture. 
Fuel:
In many parts of the developing world, cow dung is used as fuel for cooking. It is often dried into cakes or patties for this purpose. 
Building Material:
Cow dung is used to coat walls and floors in some cultures. It is believed to improve hygiene and repel insects. 
Religious and Cultural Practices:
In India, cow dung is considered sacred and is used in religious rituals and ceremonies. 

The image shows cow dung drying on a fence, likely to be used as fuel or fertilizer.