Republican presidential nominee Donald Trump has made no secret of the fact that he favors traditional energy sources like coal and oil over newer, cleaner sources such as solar and wind power.

The Hill reports that during a rally on Monday, Trump made a rather novel argument against wind power by claiming it’s responsible for slaughtering birds on an unimaginable scale.

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“The wind kills all your birds,” Trump said. “All your birds, killed. You know, the environmentalists never talk about that.”

They probably don’t because the number of birds killed by wind turbines is incredibly small compared to the number of birds killed by other things.

A study cited by the Audubon Society estimates that as many as 328,000 birds are killed each year by wind turbines.

While this seems like a lot, other studies have claimed that between 365 and 988 million birds die every year from crashing into windows. Other studies claim that pet cats slaughter literally billions of birds per year.

Despite this, Trump would likely never argue that bird deaths are reasons for humans to stop using windows or owning cats.