House Martin Conservation is an independent charity that aims to increase knowledge of the house martin and create a channel for support throughout the UK and Ireland. The 2026 season sees the charity make a renewed call for all nesting records of this declining species.
In partnership with Coreo,
House Martin Conservation have developed the ‘House Martin Mapper’ app. The app allows you to record details of yours, or other colonies, along with a facility to record mud collecting data.
Data is shared with Local Environmental Record Centres (LERCs), the National Biodiversity Network (NBN) Atlas and bird clubs, upon request to Dean Cornish, Data Lead at datasharing@housemartinconservation.com, to maximise the data use for conservation locally and nationally and informing planning decisions/mitigation.
Although our social media accounts allow us to see your reports of national locations of house martin colonies across the UK and Ireland, we needed a more consistent and accessible way of collecting and utilising data, to enable us to refine and enhance our conservation efforts.
For further details on the work of our charity and for instructions on downloading and using this free app please visit https://housemartinconservation.com/house-martin-mapper-app We also welcome new members to the charity. We are hugely grateful to our membership family. 
Membership is entirely free and members will receive a welcome pack, a twice-yearly digital newsletter and will be invited to take part in charity events as we grow and increase our activities. Members will also be able to attend our AGM and vote to elect trustees and officers. We have very active social media groups attracting members and followers from all over the world. For more information on membership please visit
https://housemartinconservation.com/join-us
