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Global Big Day birders tally a record 6,906 species

This Barred Becard was spotted on the Global Big Day in Costa Rica. Photo by Guillermo Saborío Vega/Macaulay Library

On May 5, Global Big Day birders tallied nearly 7 out of 10 species known to exist on the planet. That works out to record-shattering results: more than 6,900 bird species recorded by more than 28,000 participants.

During Global Big Day, a celebration of the world’s birds, participants report their observations to the eBird website run by the Cornell Lab of Ornithology. “Big Day” is the term used for any attempt to see or hear as many bird species as possible in 24 hours.

“If you get people all around the world going out birding on the same day, we can find most of the species of birds and then really start to understand them,” says Chris Wood at the Cornell Lab. “And along the way, it’s a great way to expose people to birds and spark what for many people will become a lifelong passion.”

Passionate birdwatchers in Colombia upheld their enviable status as the country reporting the greatest diversity of birds. Global Big Day participants there reported more than 1,500 out of a possible 1,900 species — even the country’s president and the air force were counting birds! Nipping at their heels was rival powerhouse Peru, where the final species total was an astonishing 1,490 species. Birdwatchers from more than 150 countries took part in the massive event.

The Cornell Lab’s Team Sapsucker, sponsored by LOWA Boots LLC, fielded three teams linking three far-flung locations along the Pacific Flyway used by migratory birds during spring and fall: Monterey County, California; Honduras; and northern Colombia. The midnight-to-midnight runs for these squads, made up of top-notch local eBird partners and birders from the Cornell Lab, yielded 592 species in habitats ranging from low-lying desert to breath-stealing mountain tops. Final species totals for each Lab group:

  • Team California: 203
  • Team Honduras: 244
  • Team Colombia: 279
Team Sapsucker’s list in Colombia included Sparkling Violetear. Photo by Drew Weber/Macauley Library

The Sapsuckers’ combined checklist is a kaleidoscopic cross-section of the birds of the Americas, including 25 species of hummingbirds, 6 types of trogons, 30 kinds of raptor, 59 flycatcher species, and 37 species of shorebirds. One of the goals of this Big Day is to raise awareness about the urgent need to restore and protect key coastal sites for migrating shorebirds.


“It’s so amazing to think about Sanderlings departing California in a couple of days to go breed in the Canadian Arctic,” says the Cornell Lab’s Brian Sullivan, part of the California Sapsucker team. “Meanwhile Sooty Shearwaters have just arrived from islands in the South Pacific. Birds use our planet in such a different way than we do.”

Bottom line? Never before have so many birders gone out in this many countries, found so many birds, and reported them to eBird for fellow birders, researchers, and conservationists to use. And that is indeed something to celebrate.

Thanks to the Cornell Lab of Ornithology for providing this news.


Read more about Global Big Day results from around the world

Read more articles about eBird or written by eBird’s leaders

11 Big Day lessons



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