Roof nests: which UK birds nest in roof spaces?

If you can hear scratching, chirping or fluttering above the ceiling, or you’ve spotted birds slipping under tiles, you’re probably dealing with one of a small set of typical UK “roof nests”. The most common culprits are House Sparrows, Starlings, Jackdaws and pigeons; in summer, Swifts may be using tiny gaps under tiles, and House Martins often build mud nests under the eaves (usually outside, not in the loft).

Here’s a practical way forward: (1) find the entry point (eaves, vent, chimney, under tiles), (2) note the time of day and sounds, (3) look for nest materials and droppings, then match what you see to the species profiles below.

Important: don’t block entrances or disturb a nest if it’s active. During the breeding season, interfering with an active nest can be illegal and can trap chicks inside. If in doubt, observe from a distance and plan proofing for after the birds have fledged.

Roof nests: quick ID checklist

Use this fast checklist to narrow your “roof nests” down to two or three likely species before you do anything else. A short watch from the garden with binoculars often tells you more than going into the loft.

• Where are they entering?
  • Under tiles / tiny gap at eaves: Swift (summer), sometimes House Sparrow or Starling.
  • Gap in soffits / fascia line: House Sparrow (often several birds), Starling.
  • Vent, air brick, pipe opening: Starling; occasionally sparrows.
  • Chimney pot / open chimney: Jackdaw most likely; sometimes Starling. Treat as a specialist job.
  • Ledge, solar panel edge, accessible loft hatch area: pigeon species, especially if there’s heavy droppings below.
• When are they most active?
  • Dawn and early morning, frequent short trips: sparrows and starlings feeding chicks.
  • All day, steady back-and-forth to one hole: starlings, sparrows; swifts also feed frequently in fine weather.
  • Mostly daytime, larger birds carrying sticks: jackdaws.
  • Nearly year-round activity: pigeons (they can breed in most months).
• What do they sound like?
  • Constant chattering from several birds: House Sparrow colony.
  • Whistles, clicks and a “busy” chorus from one entrance: Starling.
  • Loud “chack-chack” calls; heavy thumps: Jackdaw.
  • Deep cooing nearby; wing claps on take-off: pigeons.
  • High screaming parties overhead (not in the loft): Swifts using a small gap under tiles.
• What evidence can you see?
  • Grass, feathers, bits of string poking out: sparrow or starling nest in a cavity.
  • Sticks at chimney top, or sticks dropping into fireplace: jackdaw (urgent to address safely).
  • Large splashes of droppings on wall/path below a ledge: pigeons.
  • Neat mud “cup” nest stuck under eaves: House Martin (external).

The UK birds most likely to make roof nests (species-by-species)

Most reports of “roof nests” in UK homes boil down to the species below. Your location and housing type matter (older roofs and open chimneys offer more access), but the clues are usually consistent: entry point, noise, nest material and droppings.

House Sparrow

Where they nest: House Sparrows commonly use gaps under the eaves, behind fascia boards, in soffits, or under loose tiles. They’re social, so you may see several birds using the same area or adjacent holes.

What you’ll notice: noisy, continuous chattering and rapid comings-and-goings, especially in the morning. Nests are made from dry grass, feathers and soft materials. Around the entry, you might see scattered feathers or bits of grass sticking out, plus small droppings on walls, windowsills or paving beneath.

Typical scenario: a flurry of activity at one spot along the eaves, sometimes with birds queuing briefly before popping inside.

Starling

Where they nest: Starlings look for cavities: gaps under tiles, damaged soffits, vents, and sometimes old holes in brickwork near the roofline. They often return to the same place each spring if it stays accessible.

What you’ll notice: starlings are famously vocal; near a nest you can hear whistles, clicks, chatters and plenty of general commotion. Their nests can be surprisingly bulky, built from dried grass and straw, sometimes with man-made scraps mixed in. Activity can start quite early in the season, with intense feeding runs once chicks hatch.

Typical scenario: one or two birds repeatedly using a vent or a small hole, with more obvious “busy” noise than you’d expect for the size of the entrance.

Jackdaw

Where they nest: Jackdaws most often choose chimneys and chimney pots, though they’ll also use large roof cavities if there’s a suitable entrance. They’re bigger than starlings and sparrows, and their nest-building materials are correspondingly hefty.

What you’ll notice: a loud, distinctive “chack” call, strong purposeful flight to the roof, and birds carrying sticks (sometimes lots of them). If the nest is in a chimney, you may see sticks protruding from the pot, hear thumping, or find debris in the fireplace. This can create ventilation problems and, if you use the fireplace, potential safety issues.

Typical scenario: repeated stick-carrying in spring, with two birds working as a pair and being very site-faithful.

Feral Pigeon / Woodpigeon (roof void users)

Where they nest: Pigeons don’t need a neat cavity. Feral Pigeons may use sheltered roof spaces, ledges, under solar panels, or any accessible void; Woodpigeons more often nest in trees, but can use sheltered building ledges and occasionally roof structures if they can get in.

What you’ll notice: cooing nearby, heavy wing noise on take-off, and a very sparse stick platform rather than a woven cup. The giveaway is usually droppings: pigeons leave large, obvious splashes that build up quickly on walls, patios or paths below the roosting point.

Typical scenario: a messy, sheltered corner with repeat use, often alongside roosting (not just nesting).

Swift (under tiles, not “in the loft”)

Where they nest: Swifts generally use tiny gaps under tiles or at the eaves, often in older buildings. They don’t typically nest deep in a loft you can access; the nest is usually tucked in a narrow cavity.

What you’ll notice: swifts are strongly seasonal: look for them mainly from late spring through summer. The classic sign is screaming groups (“screamers”) racing around rooftops, with birds slipping into a gap at speed. Inside, you may hear light scratching or chittering rather than heavy movement.

Why it matters: swifts are a conservation priority in many areas, and blocking access can remove a long-used nest site. If you’re planning roof works, consider fitting swift bricks or swift boxes as a long-term alternative.

House Martin (under eaves, external mud nests)

Where they nest: House Martins usually build mud cup nests stuck to the outside wall under the eaves. People often call these “roof nests” because they’re right on the roofline, but they’re typically external, not in the roof void.

What you’ll notice: frequent aerial activity as adults bring insects back to the nest. The nest itself looks like a rounded mud structure with a small entrance hole near the top. You’ll often see droppings on the wall or ground below; a small board or shelf can help keep the area tidy without disturbing the birds.

How to avoid confusion: Swallows tend to nest inside open buildings (barns, garages), while House Martins prefer the outside eaves of houses.

Less common but possible: Great Tits and Blue Tits can use small cavities near the roofline (especially if there’s an existing hole), but they’re more likely to use nest boxes. Wrens and Robins sometimes nest in porches, sheds or odd ledges rather than true roof voids. If the entrance is very small and the activity is quiet and discreet, a tit species can be a contender.

Roof space vs eaves vs chimney: where each species nests (and why it matters)

When people say “roof nests”, they may mean three different places, and that affects both identification and what you can do next.

Eaves and soffits (roof edge): This is prime territory for House Sparrows and Starlings. The birds often enter at the roofline, meaning you might hear noise above an upstairs room or near the guttering rather than in the middle of the loft. Because access points can be small and repeated along the fascia, it’s worth checking the whole run for gaps or lifted sections.

Under tiles (narrow cavities): Swifts can use tiny, consistent gaps and may be present only in summer. Sparrows and starlings can also exploit tile gaps, especially where felt is damaged. Under-tile nesting can be hard to spot from inside; watching the roof from outside is often the best method.

Chimneys: Jackdaws are the headline species here, with starlings also possible in some setups. Chimney nesting is different because there are potential ventilation and safety implications, and removal or fitting a cap/cowl should be handled carefully. If there’s any chance the chimney is active or connected to a fire, get qualified advice before doing anything.

Timing: when roof nests happen in the UK (what you’ll notice and when)

Breeding timing varies with weather and location, but “roof nests” tend to follow a few patterns:

• House Sparrows and Starlings: mainly spring to late summer, often with more than one brood. Expect a sharp rise in noise and feeding trips once chicks hatch.
• Swifts: largely May to August. If you only notice the issue in summer and then it disappears, swifts are worth considering.
• Jackdaws: most nest-building activity is in spring, and pairs can be persistent with favoured sites year after year.
• Pigeons: can breed in many months of the year, so “out of season” isn’t always a safe assumption.

If you’re planning proofing or repairs, the safest approach is to confirm the nest is inactive first, then schedule work for a quieter period.

What you can do next (law, safety, and humane options)

If you’ve identified likely roof nests, the next step depends on whether the nest is currently active.

Know the legal basics (UK): under UK wildlife law, active nests, eggs and chicks are protected. In practical terms, it’s generally illegal to intentionally take, damage or destroy an active nest, or to obstruct access in a way that causes harm. Some species have additional protections, and rules can differ slightly across the UK nations, so check the most up-to-date guidance for your area (for example via GOV.UK or your local statutory nature body).

1) Confirm activity without disturbing the birds

• Watch from indoors or the garden for 10–15 minutes: are adults carrying food in regularly?
• Listen for chicks calling (often a steady, repetitive begging sound).
• Look for a consistent flight line to one gap or vent.

If you’re not confident, take a short video on your phone of birds entering/exiting and compare with the species notes above, or use our guide to identifying garden birds by sound (UK).

2) If the nest is active: leave it in place and reduce disturbance

• Don’t block holes, fill gaps or fit mesh while birds are using the site.
• Keep loft visits to an absolute minimum; avoid shining lights or moving insulation around the nest area.
• Plan ahead: note the entry point and book repairs for after fledging.

3) If the nest is not active: proof the access point properly

• Repair lifted soffits/fascia gaps; replace broken vents with bird-safe grilles.
• Use appropriate mesh or brush strips where suitable, fitted securely so birds can’t get trapped.
• For tiles, address the underlying gap rather than just packing from the outside, which can fail in bad weather.
• For chimneys, consider a suitable chimney cap/cowl that maintains ventilation.

4) When to call a professional

• Chimney nesting (especially jackdaws): avoid DIY clearance.
• Any situation with large droppings build-up, mites, or health concerns. See our safe-cleaning overview on bird droppings: identification and safe cleaning advice.
• Unclear identification, repeated re-entry, or if the roof structure needs repair.

Do not: use poisons, seal entrances when birds are actively using them, or attempt to remove a chimney nest yourself. These approaches risk animal welfare issues, legal trouble, and damage to your home.

Final thoughts

In most UK homes, “roof nests” are made by House Sparrows, Starlings, Jackdaws or pigeons, with Swifts and House Martins being common roofline nesters in summer (though House Martins usually build outside under the eaves).