This map shows where House Martin nests have been reported in Cornwall in 2026. Counts have been submitted for a total of 0 sites totalling 0 nests. Each marker represents a site with at least one nest - click or tap on the marker to see more details. Some will be colonies with several pairs nesting close together.

Help us fill in the gaps by telling us where you have seen nests in use on this page.

View 2025 results