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Orange Tip Butterfly (Anthocharis cardamines)

Nature’s Calendar observations help us predict how wildlife is affected as the climate changes.

In the last few decades there has been a trend towards increasing temperatures. Nature’s Calendar records help us predict how wildlife is affected as the climate changes.

The database currently contains 2.7 million records, many of them collected by members f the public. It is believed to be the longest written biological record of its kind in the UK with data used by researchers from across the UK.

Which species can you record? 

frog profile

 In order to make sure our records are comparable and consistent we only record events that occur in specific species.

The species we record through Nature’s Calendar were selected using the following criteria: 

• Recorded extensively in the past
• Respond strongly to changes in seasonal temperatures
• Common across the UK
• Widely-recognised and well-loved
• Found in both rural and urban situations. 

There is a dearth of autumn records, since most early phenologists tended to focus on spring events, so this is an area where future data collection will be especially important.

Let us know what's happening near you

Take part in Nature's Calendar and help scientists monitor the effects of climate change on wildlife.

Start recording