Article: Mass Bird Die-Off Linked to Wildfires and Toxic Gases

[The Nunn Guy]

Hi all

Just got this from one of our Forest Service scientists.

• https://eos.org/research-spotlights/mass-bird-die-off-linked-to-wildfires-and-toxic-gases

Thanks, Gary Lefko, Nunn

http://www.friendsofthepawneegrassland.org

https://www.inaturalist.org/projects/birds-and-more-of-the-pawnee-national-grassland

[SeEttaM]

Article said, "There was a strong correlation between the observations of dead birds and wildfires and the toxic gases they produced, but not with the early winter storms."

How strange since the birds reported dead in Colorado were the day when a very winter was occurring.  Hmmm, something doesn't make sense. 

SeEtta Moss 

Canon City 

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[Michael T]

I think if one would read the cited paper slated for publication and read the supporting information for the paper, the overall story would be clearer. It makes some very good points and clarifications.

Michael Tincher

Loveland, CO

[mvjo...@gmail.com]

I think there were two phenomena going on. Birds that died BEFORE the summer snowstorm, and those apparently influenced by the drastic cold and snow that seemed to pretty much wipe out San Luis Valley migrant birds. From 80 degrees to 20's overnight and 14 inches of snow in the San Luis Valley. At the height of migration, birds were likel;y weakened from migration or other factors.  The scads of birds dying here were directly from cold wet conditions, and starvation and death.  I am agreeing with SeEtta that at least in our part of Colorado, the storm's impact was direct....heavy snows, wet birds with little to eat, and subsequent mortality. In the San Luis Valley you might surmise that smoke was a contributory indirect effect that resulted in weakened birds. But at least in this region, the abrupt and serious weather conditions were the reason so many bird died. 

I 

[The Nunn Guy]

Hi all

Full paper on the bird die off issue ... https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2021GH000395 ... titled "Unprecedented Migratory Bird Die-Off: A Citizen-Based Analysis on the Spatiotemporal Patterns of Mass Mortality Events in the Western United States"

Thanks, Gary Lefko, Nunn

http://www.friendsofthepawneegrassland.org

https://www.inaturalist.org/projects/birds-and-more-of-the-pawnee-national-grassland

[mvjo...@gmail.com]

Someone should have done better proof reading of this document.     "naive migratory birds" and many more grammatical errors. No titles on graphs and tables, no legends. 

[Charlie Chase]

This article hasn't gone to final press yet as far as I know.  When i was looking at it the other day, there was a note that it was still undergoing review and editing and that this was a preview .   I have bigger issues with their methods and conclusions but that is for another email.

Charlie Chase, Denver

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[Catherine Labio]

There was a related article in The Guardian last September: https://www.theguardian.com/environment/2020/sep/16/birds-falling-out-of-the-sky-in-mass-die-off-in-south-western-us-aoe