Birds at Risk of Extinction Due to Climate Change

I didn't know it was this dire: 

"a grim picture: a steady decline of nearly three billion North American birds since 1970, primarily as a result of human activities. Climate change will further exacerbate the challenges birds are already facing from human activity.  

In 2014, Audubon published its first Birds and Climate Change Report. The study showed that more than half of the bird species in North America could lose at least half of their current ranges by 2080 due to rising temperatures." 

-audobon.org

"Cats have contributed to the extinction of 63 species of birds, mammals, and reptiles in the wild...In the United States alone, outdoor cats kill approximately 2.4 billion birds every year."

https://abcbirds.org/program/cats-indoors/cats-and-birds/