This video from the USA says about itself:
On April 27, 2012, the expert birders on Team Sapsucker recorded 264 species in 24 hours—a pace of 11 new species every hour of the day, including before dawn and after sunset. This video condenses those 24 hours into 4 minutes. Watch as the birds flash by.
Note: Video shows 236 of the 264 species seen. These photos were not taken during the Big Day.
From the Cornell Lab of Ornithology in the USA, April 2020:
Sneak Peek: Our Plan for a Safely Distanced Big Day Fundraiser
Big Day has been a tradition at the Cornell Lab for three decades. It’s also been our single biggest conservation fundraiser each year. So as the reality of the pandemic shutdown became clear last month, we had to make some adjustments.
A typical Big Day sees Team Sapsucker heading far afield to highlight global conservation challenges such as migratory pathways and sensitive habitats. But faced with stay-at-home orders, we’ve decided to do what birders everywhere are doing: celebrate our home turf.
Big Day is scheduled for May 9, and Team Sapsucker will take to the fields and back roads of the New York Finger Lakes region (as local restrictions allow) to enjoy spring birding during the height of migration. We hope you’ll join us in spirit by birding from your home as well. Stay tuned for more info coming soon, and please stay safe.