Invasive species: An invasive species refers to any non-native organism that causes harm to the environment, economy, or human health. These species often outcompete native species and disrupt ecosystems.
Bird migration: Bird migration is the seasonal movement of birds from one region or habitat to another. Many bird species, including European starlings, migrate long distances in search of food and suitable breeding grounds.
Ecosystem disruption: Ecosystem disruption occurs when there are significant changes or disturbances in an ecosystem that affect its structure and function. Invasive species like European starlings can disrupt ecosystems by altering food webs and competing with native species for resources.