House Martins in Wales
When the House Martin (Delichon urbicum) is present in Wales, when it nests, and which native Wales plants supply the food it depends on.
- Status in Wales
- Summer visitor
- Nesting season
- May–August
- Size
- 12.5 cm, 18 g
- Nest box
- Artificial house martin cup under eaves
- Delivery
- Perch Supply ships to the UK
When to expect house martins in Wales
The House Martin arrives in Wales in spring to breed and leaves again in autumn. Cool, damp summers with long daylight; oak woodland supports Pied Flycatchers and Redstarts.
Mild, wet maritime climate with upland moorland and sheltered coastal valleys.
Nesting in Wales
In Wales the House Martin usually nests May–August. Nest site: mud cup under eaves. Clutches are 4–5 eggs, incubated for 14–16 days; chicks fledge after 22–32 days, and pairs raise 2 per year.
- Nest box: Artificial house martin cup under eaves. Put boxes up by February and clean them out between September and January.
- Avoid cutting hedges during the nesting season (roughly March to August) — in the UK, disturbing an active nest is an offence under the Wildlife and Countryside Act 1981.
Native Wales plants for house martins
Of the native plants we track for Wales, these 8 provide food the House Martin uses:
Haws feed thrushes all winter; spring blossom supports hundreds of insect species.
Late-winter berries when little else is left, plus dense nesting cover.
Late-summer berries taken by Blackcaps and thrushes.
Thorny cover that protects nests; early blossom for insects.
Berries and nest sites in its tangles; moths for insect-eaters.
Blackberries and impenetrable nesting cover.
Seed heads for Goldfinches and a nectar source for insects.
Early-summer cherries for Blackbirds and Jays.
Feeding in the garden
Flying insects.
- Does not visit feeders — habitat and water are what bring it in.
- Artificial cup nests under eaves attract new colonies.
Frequently asked questions
Frequently asked
Are house martins in Wales all year?
No. The House Martin is a summer visitor to Wales, arriving to breed and leaving in autumn.
When do house martins nest in Wales?
Typically May–August. Clutches are 4–5 eggs, incubated for 14–16 days, with 2 per year.
Which native plants help house martins in Wales?
Hawthorn, Ivy, Elder, Blackthorn, Honeysuckle, Bramble, Common knapweed, Wild cherry are native to Wales and provide food or cover the House Martin uses.
What nest box does the House Martin use?
Artificial house martin cup under eaves.
House Martins in other countries
Other garden birds in Wales
Sources
- House Martin — RSPB bird guide
- House Martin — BTO BirdFacts
- Bird Atlas 2007–11 — British Trust for Ornithology
Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.