Poultry litter comes from chickens and other birds. When they live in a big group, the litter is made up of their poop and wood shavings or straw. This litter can be used in many ways after it's cleaned up. Farmers can use it to fertilize their crops, which helps the plants grow healthier and stronger. Some farmers even use the litter to produce energy, like heat or electricity, since it contains lots of nutrients that can be turned into gas. Overall, poultry litter is a useful resource for farmers that helps the environment and makes farming more sustainable.