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#1534100 --- 09/20/19 06:16 AM Vanishing songbirds
Teonan Offline
Senior Member

Registered: 05/30/12
Posts: 4982
Loc: Malmö

Wake up call!

Three billion birds have been lost in North America since 1970
Due to habitat loss, pesticides, and more, North America’s springs are more silent than ever.

By Jason Bittel

September 19, 2019

You might not notice it while hiking through the woods or strolling through a city park, but according to a new study, bird populations across North America are in a state of quiet freefall.

In fact, compared with bird counts from 1970, scientists now estimate that the United States and Canada, which are home to 760 bird species, have lost around three billion birds.

The study, published today in the journal Science, analyzed a combination of long-term population surveys as well as weather radar data to tease out the trend. Overall, the researchers discovered that birds found in grasslands—including well-known families such as sparrows, warblers, blackbirds, and finches—have been hit hardest, with their populations cut 53 percent over the last 48 years. (Read why birds matter in National Geographic magazine.)

With nearly three-quarters of all grassland species experiencing decline, it seems these biomes, which include farmers’ fields, are especially vulnerable to habitat loss and exposure to toxic pesticides. But plummeting bird numbers may also be linked to huge drops in insect populations—an important avian prey, the researchers say.


“We should take it as staggering, devastating news,” says study senior author Peter Marra, director of the Georgetown Environment Initiative at Georgetown University.

https://www.nationalgeographic.com/animals/2019/09/three-billion-birds-lost-north-america/


Huge decline in songbirds linked to common insecticide
https://www.nationalgeographic.com/envir...ds-lose-weight/


Edited by Teonan (09/20/19 07:58 AM)
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"Everything that has ever happened to us is there to make us stronger."
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#1534149 --- 09/20/19 02:39 PM Re: Vanishing songbirds [Re: Teonan]
Formermac Offline
Silver Member

Registered: 10/22/12
Posts: 13100
Loc: Above ground
It's disturbing that we as a society are negating to do something about our children and grandchildren's future.

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#1534155 --- 09/20/19 03:21 PM Re: Vanishing songbirds [Re: Teonan]
Ben444 Online   content
Senior Member

Registered: 09/12/18
Posts: 7711
Loc: Seneca County
https://www.rawstory.com/2019/09/images-...ions-of-people/

Images from global climate strikes show city streets packed with millions of people
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TRUMP AND HIS WHOLE FAMILY WILL BE IN JAIL BY 2020 election

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