Big Butterfly Count

I love love Butterflies Week 9 20 February 2026 (Instagram Pos

It was great having people participate in the 2026 Big Butterfly Count. We look forward to even more participation in 2027 - and if you have suggestions how we can make improvements, or would like to help us organise it, please email the MBNZT: email

How can we know how well our butterflies are faring if we don’t even know where they are - or where they aren’t? Here in NZ many people don’t even know which butterfly species we have, let alone how they’re doing. We discovered this back in 2015 during our first national survey of butterfly species. It became clear that we needed to focus on more education before launching another project like this. Thankfully, with the help of technology and support from the UK Centre for Ecology & Hydrology, tracking butterflies is now much easier.

The app allows you to count butterflies while walking or sitting in one spot. Choose a location where you can repeat your counts year after year for consistent data. The best time to spot butterflies is early afternoon on sunny, warm days with little wind and no rain.

Watch this video to see how to use the app.

Note: For consistency we record the largest number of each species that you see within the 15 minutes. So if you see one copper butterfly, you will add that species to your count. If you see THREE of that species at any one point, you will use the + to add two more to your count, so the count is three. If you see one yellow admiral and it flies away, but later you see another single yellow admiral during the 15 minutes, your count will be just ONE yellow admiral.

Here's the report from our Big Butterfly Counts so far.

Butterfly Count 2026 Report

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Our Heroes

Thanks to our heroes we are making steady progress towards our vision, that Aotearoa New Zealand's ecosystems support thriving moth and butterfly populations.
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