Hollow trees are trees that have a significant cavity or space inside their trunk or branches. This hollowing can occur naturally due to decay, disease, or damage from storms. Some species, like oak and maple, are more prone to developing hollows over time. These trees can provide habitats for various wildlife, including birds, insects, and small mammals. In addition to serving as homes for animals, hollow trees can also play a role in the ecosystem by recycling nutrients back into the soil. They can be important for biodiversity and contribute to the overall health of forests. However, hollow trees may also be more vulnerable to falling or breaking, especially in severe weather conditions.