[BlessedBeGod]

Wind turbines kill about 234,000 birds a year, whereas cats kill 2.4 billion.

I don't know where Business Insider or MSN gets their number from, but the generally accepted number of birds killed per year by wind turbines is 1 billion. However, they are correct about the cats.

[polymuser]

Seems the 2.4b number is out there.

My neighbor has one cat that easily kills a bird a week, so 50 birds per year per (outside) cat is not unreasonable to me.

https://www.nationalgeographic.com/animals/2019/09/essay-to-save-birds-should-we-kill-off-cats/

[thepoodlebites]

Wind turbines kill about 234,000 birds a year, whereas cats kill 2.4 billion.

North America may have lost nearly 3 billion birds, a quarter of its total bird population, since 1970.

So, cats kill 2.4 billion birds per year in the U.S. and, nearly 3 billion birds have been lost since 1970, a 50 year period.

If both statements are true then the net loss in birds (death by cat) is ~400 million over a 50 year period or, 8 million per year!?