On Mon, 23 Sep 2019 10:13:43 -0700 (PDT), David P
wrote:

Birds Are Vanishing From North America
The number of birds in the U.S. a& Canada has declined by 3 billion, or 29 percent, over the past half-century, scientists find.
By Carl Zimmer, 9/22/19, New York Times

The skies are emptying out.

The number of birds in the United States and Canada has fallen by 29 percent since 1970, scientists reported on Thursday. There are 2.9 billion fewer birds taking wing now than there were 50 years ago.

snip

https://abcbirds.org/program/cats-in...ats-and-birds/

"Predation by domestic cats is the number-one direct, human-caused
threat to birds in the United States and Canada.

In the United States alone, outdoor cats kill approximately 2.4
billion birds every year. "

Time for a(n outdoor) cat cull methinks ... unless they could be
rounded up and trained to assist the blind, detect drugs / money /
weapons / diseases, protect livestock and people or we can find a
suitable recipe for them. 'Cat a l'orange' anyone. ;-)

Cheers, T i m