This Department of Birds offers the public a new perspective on the environment: by observing birds living in cities, we can understand the survival pressures that land development and climate change impose on them. Birds are more sensitive to environmental health than humans! Climate change, stemming from habitat fragmentation and environmental degradation caused by humans, profoundly affects bird life, reflecting our own future. Over the past 50 years, the Earth's wild animal species have declined by 69%, reflecting the overall deterioration of the Earth's environment. Protecting the biodiversity of the Earth's wildlife is essential for safeguarding our common future.