What is a nesting roof tile?
A nesting roof tile (in Dutch zwaluwpan, “swallow tile”) is a special roof tile that replaces a standard tile in the roof slope and has an entrance hole, so that swifts or swallows can nest beneath it. A common version is the swift tile. It has the same shape and colour as the surrounding tiles, so it is barely noticeable.
Why a nesting tile?
Swifts depend almost entirely on buildings for nest sites. They nest under roof tiles, behind fascias and in holes in walls. When roofs are insulated or renovated these spots are often sealed, so nest sites disappear. A nesting tile provides a fixed, controlled nest site without birds getting into the insulation or the rest of the roof.
Where to fit it
- High on the roof: swifts fly into their nest at speed and need a clear flight path. Fit the tile high up and not behind trees or obstructions.
- Out of full sun: if possible choose a position where the nest space will not overheat.
- Enclosed nest chamber: behind the tile there should be a closed nest box, so the bird cannot get further into the roof.
- Several tiles: swifts nest in colonies. A few tiles in a row work better than a single one.
Protection of nests
In many countries the nests of wild birds are protected by law, and some species, such as swifts in the Netherlands, have nests protected all year round. If you are renovating or insulating a roof where birds nest, take this into account and check whether you need a licence. When in doubt, ask your local authority or a nature conservation body before starting.
Tips for re-roofing
- Survey first for birds or bats under the roof.
- Plan work outside the breeding season where possible.
- Replace lost nest sites with nesting tiles, nest boxes or swift bricks.
- Fit an eaves bird comb on the rest of the roof, so birds do not get under the tiles uncontrolled.
Related terms
- Nest box
- Eaves bird comb
- Bird deterrence
- Chimney bird guard
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