https://www.audubon.org/magazine/may-june-2014/why-passenger-pigeon-went-extinct

Why the Passenger Pigeon Went Extinct. And whether it can, and should, be brought back to life a century after it disappeared.

https://www.npr.org/sections/thetwo-way/2017/11/16/564597936/why-did-the-passenger-pigeon-go-extinct-the-answer-might-lie-in-their-toes

Nov 16, 2017 ... Scientists believe they may have new insights into why passenger pigeons went extinct, after analyzing DNA from the toes of birds that have ...

https://en.wikipedia.org/wiki/Passenger_pigeon

The passenger pigeon or wild pigeon (Ectopistes migratorius) is an extinct species of pigeon ..... as it has been found that forest fires have increased in prevalence since the extinction of the passenger pigeon, which seems to go against the ...

https://www.thevintagenews.com/2018/06/19/why-passenger-pigeons-became-extinct/

Jun 19, 2018 ... The daytime darkness could last for hours, and it could only mean one thing–a flyover by a seemingly endless flock of passenger pigeons.

https://www.forbes.com/sites/grrlscientist/2017/11/24/why-did-the-passenger-pigeon-go-extinct/

Nov 24, 2017 ... As extinctions go, the extinction of the passenger pigeon is truly a stupendous human achievement, unparalleled in recorded history: thanks to ...

https://news.nationalgeographic.com/news/2014/08/140831-passenger-pigeon-martha-deextinction-dna-animals-species/

Aug 30, 2014 ... A hundred years ago on Monday, a once-mighty species became extinct. At the Cincinnati Zoo, a passenger pigeon named Martha died at the ...

https://www.sciencedaily.com/releases/2018/01/180111084953.htm

... numerous species on Earth. The last passenger pigeon died in the Cinncinati Zoo just over 100 years ago. How did it all go so wrong? ... Turns out that humans really did cause the extinction of this species. Date: January 11, 2018; Source: ...

https://www.pri.org/stories/2017-12-03/why-did-passenger-pigeons-go-extinct

Dec 3, 2017 ... The last passenger pigeon died more than 100 years ago, but scientists still puzzle over how a bird once numbering as many as 5 billion ...

https://www.si.edu/spotlight/passenger-pigeon

The extinction of the passenger pigeon is a poignant example of what happens when ... and false reports of passenger pigeons long after they became extinct.

http://www.ohiohistorycentral.org/w/Passenger_Pigeon

The passenger pigeon had pinkish tinted gray feathers, red eyes and feet, ... considered too numerous to count, the passenger pigeon became extinct by the ...