(a species of owlet moth (Noctuid)) Some caterpillars, after they emerge from their egg, can increase their weight by 25,000 times.

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Public surveys

Whether you are interested in insects, birds, reptiles or amphibians, find out how you can help the UK's experts to map the biodiversity of the UK.

There are many national wildlife surveys happening all over the UK.  Here are some examples that you can take part in.  We will update this list as new ones launch.

  • Harlequin ladybird, Harmonia axyridis
    The harlequin ladybird survey

    The harlequin ladybird is the most invasive ladybird species on Earth and it arrived in Britain in 2004.  By taking part in this survey you can help to monitor its spread across Britain.

  • Eurasian nuthatch, Sitta europaea
    BirdTrack survey

    Find out how you can help fill gaps in scientists' knowledge about birds in the UK.  You can record information online about your bird sightings, from common garden birds to rare migrants.

  • Participants in the OPAL earthworm survey look for British earthworms in the park
    OPAL earthworm survey

    Earthworms play a vital role in recycling plant nutrients and aerating the soil, but scientists still have a lot to learn about them. Help them find out more by joining the earthworm hunt in your local park or garden.

  • A twig with yellow Xanthoria and grey Physcia - both pollution tolerant lichens
    OPAL air survey

    FInd out how much pollution there is in your local area by looking for lichen, which are natural indicators of air pollution.

  • Cowslips, Primula veris, growing in the Museum's Wildlife Garden
    PlantLife Common Plants Survey

    Help scientists monitor changes to wild flowers in the countryside by taking part in the only annual survey of wild plant species across the UK.

  • The leaves of an elm tree
    Ancient tree hunt

    What are ancient trees and why are they such perfect homes for other plants, animals and fungi?  Find out the answers from the Woodland Trust and help them map the distribution of ancient trees in Britain.

  • Common frog, Rana temporia
    Reptile and amphibian surveys

    The National Amphibian and Reptile Recording Scheme runs a number of surveys.  Seek out rare visitors to your local area, like the adder and great-crested newt, or spot more regular ones like the common frog.

  • Scalloped oak moth, Crocallis elinguaria
    Garden Moths Count

    Moths are vital for feeding birds and pollinating plants, but some of them are in trouble.  Take part in this national survey to record which species live in our gardens.

  • Stag beetle, Lucanus cervus
    The Great Stag Hunt

    The stag beetle is a protected species in the UK, following its extinction in many European countries.  Help find out if its numbers are stable in the UK by joining the Great Stag Hunt.

  • Western European hedgehog, Erinaceus europaeus
    HogWatch hedgehog survey

    Anecdotal evidence suggests that hedgehogs are declining in UK gardens and countryside.  Record your sightings to help track the population.

  • Watercolour drawing of a European mole, Talpa europaea
    MoleWatch mole survey

    By letting MoleWatch know when you see a molehill, you can help build up a picture of the distribution of moles in the UK countryside.

  • European otter, Lutra lutra
    National otter survey

    The otter is a priority species in Britain's Biodiversity Action Plan, as it has declined significantly.  If you see an otter, record your result to help monitor the otter's recovery.

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