Why Nesting Season Rewards a Quiet Approach

From roughly March through to August, your garden stops being a feeding station and becomes a nursery. Great tits, robins, blackbirds and house sparrows are all busy raising young, often within a few metres of your kitchen window. The trouble is that nesting birds are far more sensitive than feeding birds. A bird that happily ignores you at the feeder in January may desert a nest in May if you linger too close.

The golden rule is simple: watch from a distance, use binoculars, and never push foliage aside to "have a quick look". Most garden birds will tolerate a quiet observer sitting still at least two to three metres away, ideally more. If a parent bird starts alarm calling, flicking its wings or refusing to return to the nest, you are too close. Back off and it will usually settle within ten minutes.

Cup Nests: The Moss and Grass Architects

The classic cup nest is the one most of us picture, and it is built by many of our best-loved garden species. Blackbirds construct a sturdy bowl of dry grass and moss, then line it with a smooth inner cup of mud and fine grass — a neat piece of engineering that keeps the eggs snug and firm.

Song thrushes do something similar but add a lining of rotten wood mixed with mud, which sets hard like plaster. Robins are far less fussy about location: an open-fronted nest box, a hanging basket, a shelf in a shed or even an old boot will do. Their nests are loose and leafy, often with just a thin inner lining.

Dunnocks and chaffinches also build cups, with chaffinches often camouflaging the outside with lichen and binding it with spider silk. Look for these nests in dense hedges, climbers such as ivy or honeysuckle, and low shrubs — anywhere with good cover and a sturdy fork of branches.

Cavity Nesters: Hole-Dwellers and Box Residents

Many garden birds nest in holes rather than open cups, which makes them far easier to help. Blue tits, great tits, nuthatches, starlings, house sparrows and tree sparrows all seek out cavities, whether in old trees, wall crevices or a well-placed nest box.

• Blue tits prefer a 25mm entrance hole and will happily use a box in a sunny, sheltered spot facing between north and east.
• Great tits need 32mm and often choose boxes a little higher up, among trees or on a wall.
• House sparrows are colonial, so several boxes clustered together under the eaves are far more tempting than a single one.
• Starlings require a 45mm hole and a box with a deeper cavity, ideally three metres or more above the ground.

Blue tits typically lay eight to twelve eggs and raise a single brood, while great tits may attempt two. Both line their nests heavily with moss, hair, wool and feathers, so leaving these materials around the garden genuinely helps.

Domed, Hanging and Unexpected Builds

Some of the most impressive nests belong to our smallest birds. The long-tailed tit builds an elastic, dome-shaped structure of moss, cobwebs and lichen, camouflaged on the outside and lined with hundreds of feathers — sometimes well over a thousand. It stretches as the chicks grow, which is why it looks alarmingly bulgy by June.

Wrens are the great over-builders of the garden. The male constructs several "cock nests" of twigs and moss in crevices, and the female inspects them before choosing one and lining it herself. Goldfinches and greenfinches favour neat cups high in the canopy, often in conifers or fruit trees, where they are difficult to spot.

And then there is the woodpigeon: a scattering of twigs balanced on a branch, so flimsy you can often see the two white eggs through it from below. Somehow, it works. Woodpigeons can nest in almost any month, so check trees and shrubs carefully before any pruning.

Reading the Signs Without Disturbing Anything

You can enjoy nesting season enormously without ever seeing a nest. Watch for adults carrying beakfuls of moss, grass or feathers, or repeatedly flying to the same spot with food. Listen for the insistent begging calls of chicks, which grow louder and more frantic in the final days before fledging.

A few practical habits make a real difference:

• Avoid cutting hedges and shrubs between March and August. If you must trim, check thoroughly first and work from the outside inwards.
• Keep cats indoors at dawn and dusk, when fledglings are most vulnerable on the ground.
• Do not use pesticides or slug pellets in spring; parent birds need a steady supply of caterpillars and aphids.
• Leave a nest alone once the young have gone. Some species reuse it, and others will investigate it later.

How to Help: Boxes, Water and a Wildlife-Friendly Garden

Putting up a nest box is the single most useful thing most of us can do. Site it two to four metres up, angled slightly forward to shed rain, and away from feeders and easy cat access. Clean it out in late autumn or winter, once you are certain it is empty, and never disturb a box that is in use.

Beyond boxes, provide clean water at ground level for bathing and drinking, and keep a corner of the garden a little untidy — a log pile, a patch of long grass, some dense ivy. These small wild areas supply the insects, moss and nesting material that garden birds depend on.

Above all, be patient. Nesting season is a strange, secretive few months, and the birds that succeed in your garden this year are the ones you will be watching at your feeders all winter.