9 Tips to Attract Birds to Nest in Your Backyard
The difference between a garden birds pass through and one they choose to raise their young in comes down to a handful of specific choices. Here are nine that consistently work.
Why Nesting Matters
Attracting birds to feed is relatively easy. Attracting them to nest — to commit to your garden for an entire breeding season — is a deeper relationship. A nesting bird will return to your garden year after year, bring its fledglings, and eventually establish a generational presence. It's the difference between a visitor and a resident.
Reli community data from 50,000+ Birddy Smart Bird House users worldwide reveals which factors most strongly predict successful nesting. These nine tips are drawn directly from that dataset.
Tip 1: Mount Nesting Boxes at the Right Height
Height requirements vary significantly by species. As a general guide: small songbirds like blue tits, great tits, and chickadees prefer boxes mounted 2–4 metres above ground. Tree sparrows do well at 3–5 metres. Robins and wrens prefer lower positions, 1–2 metres, often on or near a sloping bank or among climbing plants.
Too low and cats can reach the box. Too high and the birds feel exposed during entry. Data from Birddy Smart Bird House users shows peak occupancy between 2.5–3.5 metres for small cavity-nesting species.
Tip 2: Face the Entrance Away from Prevailing Wind and Direct Sun
In the northern hemisphere, face entrance holes between north and east — away from prevailing westerly and southwesterly winds, and out of intense afternoon sun. Overheating is a significant cause of nest failure; a box in full sun can reach lethal internal temperatures on hot days. In the southern hemisphere, face entrances between south and east.
Tip 3: Put Up Multiple Box Types
Different species need different box designs. A 32mm entrance hole suits blue tits and great tits. A 28mm hole suits marsh tits and coal tits. An open-fronted box (no hole, just an open top third) suits robins, spotted flycatchers, and wrens. Providing variety in a garden of reasonable size increases the number of species that will consider nesting.
"We put up five different box types in spring. By June, four were occupied by four different species simultaneously — something we never experienced before." — Community member, UK
Tip 4: Plant Native Species
Native trees and shrubs provide insects — the primary food source for most garden bird chicks. A hawthorn, native oak, or elder provides orders of magnitude more invertebrate life than an ornamental species. Caterpillars alone — a critical food for blue tit chicks — occur in vastly higher numbers on native oaks than on any introduced ornamental tree.
You don't need a large garden. A single native hawthorn hedge or small rowan tree can meaningfully increase the insect availability that makes nesting birds choose your garden over a neighbour's.
Tip 5: Provide Nesting Material
Leave a mesh bag or small container filled with short lengths of natural fibre (cotton, wool, feathers, dry grass) in a visible location near your nesting boxes. Birds will actively collect these materials, and observing them carry nesting material into a box is one of the clearest early signs that a pair has committed to breeding.
Avoid synthetic fibres, which can tangle around chick legs.
Tip 6: Reduce Disturbance During Nesting Season
Once birds begin sitting on eggs, minimise activity near the nesting box. Avoid gardening directly beneath it, walking past repeatedly, or — critically — opening the box to check. Human scent or disturbance can cause adults to abandon the nest.
This is where the Birddy Smart Bird House's camera is transformative: you can watch every stage of the nesting process in real time from your phone, without going anywhere near the box. The camera is completely silent and produces no light or heat detectable by birds.
Tip 7: Keep Cats Away
Ground-level predation is among the most significant causes of nest failure in suburban gardens. If you have cats or neighbourhood cats visit, mount boxes high enough to be inaccessible (see Tip 1), attach a predator guard (a deep entrance hole extension that prevents reaching in), and avoid dense ground cover immediately around the box base that provides stalking cover.
Tip 8: Provide Water Year-Round
Nesting birds require significantly more water than non-breeding adults — both for themselves and for their chicks, who are often brought water in the parent's beak. A reliable, clean water source within your garden is a strong positive nesting signal.
See our companion article, 5 Bird Bath Tips to Attract More Birds, for specific advice on water setup during breeding season.
Tip 9: Leave Some Mess
Immaculate gardens are poor nesting habitats. A log pile, a patch of rough grass, dead stems left standing through winter, and leaf litter in corners provide the insect-rich microhabitats that ground-feeding birds — robins, blackbirds, song thrushes — need to find food for their chicks. The best nesting gardens are managed, but not clinical.
The single most effective thing many gardeners can do to increase nesting success is to leave one corner of the garden deliberately uncultivated.
Bonus: Monitor with a Smart Camera
None of these nine tips require technology. But a Birddy Smart Bird House with its built-in camera changes the experience profoundly. You'll know within days whether a pair is investigating the box (frequent, brief visits), starting to build (extended visits carrying material), beginning to incubate (adult sitting for long unbroken periods), or whether chicks have hatched (rapid, repeated visits carrying food).
That visibility — available quietly, at any time, from anywhere in the world via the Reli Up app — creates an emotional investment in the outcome that makes all nine of the above tips feel less like chores and more like participation in something genuinely remarkable.