Bird count
October Big Day
October Big Day: next dates not yet announced. Organised by eBird (Cornell Lab of Ornithology).
A one-day global snapshot of autumn birdlife: birders everywhere spend some time birding on the same day and share what they find.
It is organised by eBird (Cornell Lab of Ornithology). Birbs is not involved in running it — the details below are taken from the organiser's own site, which has the final word.
When is the next October Big Day?
The next dates have not been announced by eBird (Cornell Lab of Ornithology) yet. Usually a Saturday in October, alongside World Migratory Bird Day.
The last October Big Day was held on 10 October 2026.
How to take part
- Go birding for a few minutes or longer on the day — from home is fine.
- Record what you see and share your sightings through eBird or the Merlin app.
Get ready on Birbs
- Identify a Bird — narrow down a bird you are not sure of
- Identify a Bird Sound — for the ones you hear but cannot see
Dates and details checked against the organiser's site on 1 October 2026.