Aderyn :: Home

Welcome to Aderyn: the Biodiversity Information and Reporting Database of Local Environmental Records Centres Wales. Here you can access wildlife sightings and species records collated by the four LERCs, covering the whole of Wales. Anyone can use this site to view lists of species recorded around their home or maps showing the distribution of species according to data held by LERC Wales. Partners, recorders and planners can be licenced to access high resolution, detailed records to assist decision making and conservation.

What's in my Area?

Ever wondered what species have been seen near your house, school or workplace? This page allows you to find out! Using the map, you can navigate to the location you are interested in, select a 1km grid square, and return a summary of all species for that square (excluding sensitive species).


Distribution Maps

This page allows you to see where LERC Wales holds records for a specific species or taxon group (eg birds) across Wales? Select a species or an entire taxon group and display a 10km distribution map, then select a 10km square and see a 1km distribution map (excluding sensitive species).



If you are authorised to access restricted areas of this site, enter your email address and password to login. Forgotten your password?

Access to Aderyn is subject to terms and conditions. By logging in you indicate your agreement with and willingness to abide by these terms and conditions.

Migrant Hawker Broad-bodied Chaser Painted lady (<i>Vanessa cardui</i>) White-legged Damselflies Meadow pippit (<i>Anthus pratensis</i>) Silver-washed fritillary (<i>Argynnis paphia</i>) Southern Hawker Ovipositing Common Blue Damselfly Sallow Moth Small copper Lycaena phlaeas Peregrine Holly blue (<i>Celastrina argiolus</i>) Colletes hederae Ivy Bee Damselfly Hoverfly (<i>Rhingia campestris </i>) Cardinal Beetle Hedgehog (<i>Erinaceus europaeus</i>) Ermine Moth Turkey Tail in Drostre Wood Robin Southern Hawker Hummingbird Hawk Moth Colletes hederae Ivy Bee Holly Blue Butterfly Brachytron pratense Hairy dragonfly