Its Global Mammal Big Day: Can you post a mammal or two to Observation.Org on Sunday 5 October?
I am passing on this fun request from Mohit Aggarwal at Asian Adventures and Marc Guyt. I hope some of us will get involved.
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This October marks the first Global Wildlife Fair in Delhi — an international event promoting wildlife conservation and ecotourism. As part of this, we are launching the very first Global Mammal Big Day on October 5. On this day, with the help of citizen science, we aim to collectively record as many mammal species worldwide as possible.
Our vision is to make the Global Mammal Big Day a truly international annual event, and we are grateful that Observation.org is supporting the initiative by providing their platform for registering sightings.
Because this is the first edition, building awareness and participation is crucial.
One of our goals is to have wildlife enthusiasts from as many countries as possible taking part. This will allow us to proudly share:
“Wildlife enthusiasts from X countries participated in the Global Mammal Big Day…”
The broader the participation, the greater the impact — both for raising awareness and for supporting conservation efforts in years to come.
“Wildlife enthusiasts from X countries participated in the Global Mammal Big Day…”
The broader the participation, the greater the impact — both for raising awareness and for supporting conservation efforts in years to come.
That’s why we would be very grateful if you want to participate in the Big Day by going outside, looking for mammals, on October the 5th and record any mammal sighting via the Observation.org platform.
You could also help us by including the Global Mammal Big Day in your newsletter, on your website, or on your social media channels.
Here are a few key details of the Global Mammal Big Day you could share:
- Date: October 5, 2025
- Collective goal: Record as many mammal species worldwide as possible in one day
- How to participate: It is as easy as going outside, look for (wild) mammals (or check your camera trap), and upload sightings to Observation.org (photos, videos, and sound recordings highly encouraged)
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Getting started: Creating an account on Observation.org takes just a minute; uploading a sighting even less
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Getting even more traction: share your best experiences, sightings and or images via Social Media with the tag #GlobalMammalBigDay
Every contribution counts. Even one sighting helps ensure that a country is represented — and together, we can grow this initiative into a truly global and leading event for wildlife enthusiasts and conservationists alike.
Thank you very much in advance for your support in recording mammals on October 5th and by helping us spreading the word. With your help, the first Global Mammal Big Day can become an inspiring success story for nature conservation.
Important links
Global Wildlife Fair https://www.
GWF Photo competition https://www.
Sign up Photo competition https://docs.google.com/forms/
Global Mammal Big Day https://globalmammalday.com
Getting started with Observation Getting started with Observation.org
Post author
Jon Hall
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JanEbr
I mean it’s a cool idea, but similarly to other similar projects, it’s hampered by the concept of “you must use this platform”. I am not sure what are the organizers grateful to observation.org for, because it would exist to receive observations anyway, wouldn’t it?