Resources for House Martin Nest Study
Video tutorial for data entry
Video tutorial for mapping your site
Health and safety information
Problems printing the Information leaflet? View guidelines about how to check the printer settings.
BTO Bird ID - Hirundines and Swift Bird identification video describing how to identify hirundines (House Martin, Sand Martin and Swallow) and the similar, but unrelated, Swift.
BTO Data Reports
Our reports provide rigorous scientific information to inform Environmental Impact Assessments in the UK.