Bat monitoring - volunteers are invaluable in tracking how the UK's bat species are faring

Bees, Wasps and Ants - national society dedicated to studying and recording bees, wasps and ants in Britain and Ireland

Breeding bird survey - help the British Trust for Ornithology monitor the UK's bird species

Bug life - bugs play a critically important role in the world's ecosystems. Help conserve them by recording your sightings

Butterfly conservation and Monitoring - butterflies are extremely valuable indicators of the state of the environment

Nature's calendar - observe the seasons unfolding across the UK as people log their plant and animal sightings. Join in to help provide valuable information on how climate change is affecting our wildlife habitats

Nature detectives - kids' site full of activities and arts and crafts

The Great Eggcase Hunt - record the eggcases you find on British beaches to help the Shark Trust to identify the whereabouts of skate and ray nursery grounds

Wildlife Trusts - lots of volunteer opportunities to survey species and look after local nature reserves. Wildlife Watch is the junior website