At Crossman Ecology, we are always looking for the best ways to support bird conservation in new developments and home improvement projects. One key way to help declining bird populations is by installing integral nest bricks. A recent email from Salisbury & Wilton Swifts highlighted important updates in best practice for providing bird nesting provisions, and we wanted to share these insights with our clients.
Why Traditional Sparrow Terraces Are Being Reconsidered
Sparrow terraces have long been recommended for house sparrows, a red-listed species that nests in colonies. However, research suggests that while sparrows are social birds, they often only occupy one of the three chambers in a sparrow terrace. This could be because the entrance holes are too close together, making them less appealing for multiple pairs.
The Benefits of Universal Nest Bricks
A more effective solution is the use of universal nest bricks, designed based on swift bricks but suitable for a variety of small cavity-nesting birds. These bricks can be used by house sparrows, swifts, house martins, starlings, blue tits, great tits, and other species. Installing these bricks helps to provide nesting opportunities for multiple species, increasing the biodiversity benefits of your project.
Best Practice for Installing Nest Bricks
The British Standard BS 42021: 2022 outlines best practice for integral nest boxes in new developments. This standard has been endorsed by the NHBC (National House Building Council) in their guidance on biodiversity in new housing developments. The key recommendations include:
- One nest brick per house across a development to ensure adequate nesting opportunities for colonial species.
- Grouping 3-5 bricks on one property where possible, particularly in locations with suitable access to foraging habitat.
- Positioning nest bricks at least 4-5m high or as high as possible, ideally under eaves, and on north or east-facing walls to avoid overheating.
Recommended Swift Bricks
One highly recommended option is the Action for Swifts S Brick, which meets BS 42021 standards, can be faced with the building material for a seamless look, and can be tailored to suit cavity width. These bricks cost approximately £36 each and provide an excellent long-term solution for supporting bird populations. More details can be found on their website: Action for Swifts.
Why This Matters
With bird populations in decline, integrating nest bricks into buildings is a simple yet effective way to support wildlife. Many councils are now encouraging or requiring nest bricks in planning conditions for new developments. If you’re a homeowner or developer looking to include biodiversity enhancements in your project, opting for universal nest bricks is a great way to contribute to conservation efforts.
Learn More
To see the benefits of swift bricks in action, we recommend watching the RSPB’s new swift video.
For further reading, check out these resources:
- The Duchy of Cornwall’s 10-year nest box initiative: Read more
- BS 42021: 2022 British Standard for integral nest boxes: Read more
- NHBC Foundation Biodiversity in New Housing Developments (Page 42): Read more
If you have any questions about integrating nest bricks into your project, Crossman Ecology is happy to help. Get in touch with us to discuss the best options for your site!
Contact Crossman Ecology Website: Email: alex@crossmanassociates.co.uk. Phone: 01761 233414