Seven ripe cherries hung on my Morello this July. I picked four. A blackbird took the rest, and it had learned the exact mornings I was slow. That bird was not cruel, and it was not greedy — it had found a food supply and settled into a routine. Understanding that routine is the whole job.
So is knowing the law. Read the legal side before you spend a penny on netting, because a badly built barrier turns a nuisance into an offence.
The law decides the method
In the UK, every wild bird, its nest, and its eggs are protected. Section 1 of the Wildlife and Countryside Act 1981 makes it an offence to intentionally kill, injure or take a wild bird, to take or destroy the nest while it is in use or being built, or to take or destroy an egg (legislation.gov.uk). That cover is broad. A woodpigeon has the same protection as a barn owl.
Government guidance sets the order of operations. You must try to avoid harming birds, and to use methods that neither kill nor injure them, before anything harsher is considered. Licences exist for narrow cases — preventing serious crop damage, for instance — and they name the species they cover (GOV.UK, GOV.UK). A domestic garden almost never meets that bar.
North America works the same way in principle. The Migratory Bird Treaty Act protects most native species, and taking birds, their nests, or their eggs normally needs a federal permit through the Fish and Wildlife Service (U.S. Fish and Wildlife Service). A few species, among them the house sparrow and the European starling, fall outside it. That is a detail to check, never to assume.
Wherever you garden, find your own statute. Then keep one rule that travels everywhere: deter and exclude, never harm. Killing a protected bird is illegal. So is trapping one. So is pulling down an active nest, even the nest in the cherry tree the birds are emptying.
What netting has to do to work
Netting is the only method that reliably saves fruit. Penn State Extension reviewed the options for small fruit and isolated trees and reached a blunt verdict: netting is the most effective way to reduce bird damage (Penn State Extension). Every other tool buys time.
Mesh size decides which birds you stop. A 50 mm garden net keeps out pigeons and little else. Blackbirds, thrushes and starlings hop straight through it. For soft fruit, use 15 to 20 mm. That range blocks a blackbird’s reach. For sparrows and other small raiders, 15 mm is the number to hold. Below that you are into insect mesh, which also stops cabbage white butterflies but damps airflow. I keep a roll of 15 mm for fruit and a roll of 7 mm for brassicas.
| Crop | Mesh | Clearance above the fruit |
|---|---|---|
| Cherries, plums, gages | 15–20 mm | 30 cm, held on a frame or inside a cage |
| Strawberries, currants, blueberries | 15 mm | 20–30 cm on hoops |
| Brassicas and salad | 7 mm insect mesh | Resting on hoops, clear of the leaves |
| Newly sown seedlings | Fleece or fine mesh | Laid on hoops, lifted once plants are sturdy |
Height matters as much as gauge. Hold the net 20 cm clear of the fruit at the very least. I run 30 cm above a ripening strawberry bed. Fruit that presses against the mesh is a serving hatch. Birds peck through the net to reach whatever touches it. RHS cherry guidance says exactly this: raise the netting above the fruit on canes or poles, and keep it taut and fastened so birds and other wildlife cannot become entangled (RHS).
Taut is doing heavy work in that sentence. A net thrown over a bush like a dust sheet sags, snags and traps. The same net tensioned across a frame is a different object. The RSPB will not recommend flimsy material at all, and points to geotextile or solid metal mesh as safer. It also asks that garden netting be checked daily while it is up (RSPB). I walk my lines every morning during ripening. It takes four minutes, and it has never once felt like a waste.
One more habit pays for itself. Lift the corner of a cover and look inside before you water. A bird that got in overnight will not find its own way out, and a thrush caught behind mesh will not survive a hot afternoon. A pair of shears kept by the bed solves the problem in seconds.
Fruit cages earn their keep
A permanent cage beats a draped net on every count. No sagging. No daily re-tying. A door you can open without lifting the whole cover.
Build the frame first. Corner posts, cross rails, and a rigid rectangle. Keep every span short so the mesh cannot belly. Then peg the skirt down hard, every 30 to 40 cm, so there is no gap at ground level. Birds feel along the lowest edge of anything. That bottom line is where raids succeed.
RHS spends little time on half-measures for cherries. Net the tree or grow it in a fruit cage if you want the crop for yourself (RHS). A dwarf or wall-trained tree is far easier to cover than a free-standing one. Wrapping a full standard cherry is usually more trouble than the fruit is worth.
Choose a light colour if you can bear it. Pale mesh is easier for wildlife to see and easier for you to spot a trapped bird. Black disappears neatly into a hedge, and does you no favours at all.
Sacrificial rows and the decoy trap
Leave the birds something. A row of berries at the far boundary, or a shrub that fruits early, pulls attention away from the crop you care about. This works better than most people expect, because a blackbird takes the nearest easy meal first.
A decoy predator is a different animal, and it is where people waste money. Shape alone does nothing. Movement does. Place a decoy against the sky on the birds’ approach line, so it reads as a silhouette. Move it every couple of days. Then accept that it stops working.
I have watched starlings ignore a well-moulded plastic owl for a fortnight. I have also watched them scatter from a strip of builder’s plastic tied to a bean pole, because it flapped in the wind. The flapping is the whole trick. A still object is scenery.
Timing matters as much as position. Put a decoy out a week before the crop colours, not the day the birds arrive. A decoy that appears only when the fruit is ripe teaches a flock nothing except where to look.
Tape, spinners and the hard truth about habituation
Most scaring devices stop working within days. That is not a defect in the product. It is how birds operate. They test, they learn, and once they learn a scare is empty, they ignore it.
Penn State’s advice to commercial growers is to change visual scares regularly, vary where each one sits and how it looks, and pair them with sound, precisely because birds learn that a device is harmless (Penn State Extension). The useful window is short. In my beds it is measured in days, not weeks.
Reflective tape and spinners belong in the same short-lived category. They work for a while. Use them while you build the real barrier, then retire them.
Some things do not work at all, and one of them is illegal in most places. Poison against protected birds is a crime, and it kills the wrong species. Sticky repellents maim whatever lands on them, and small birds die stuck to a branch. Ultrasonic boxes are sold hard and do nothing, because birds do not hear in that range. None of these belong in a humane garden.
Time the cover to the crop
Birds keep a mental map of where food appears and when. Beat the map. Cover before the fruit colours, not after the first raid.
Cherries colour fast and go first. I net mine on the first pink flush, which here lands in the middle of June. Strawberries need cover as the first fruit swells, because the blackbirds arrive at dawn and work quickly. Brassicas are attacked from the day they go in, when pigeons shred the young leaves, so fleece goes on at planting and comes off once the plants are sturdy. Salad and seedlings want fine mesh or fleece until they hold their own.
Slice the season finer than that where you can. Early and late varieties ripen outside the peak of local pressure more often than not. A crop that finishes before the flocks arrive needs no net at all.
The birds working for you
Here is the balance that the netting talk crowds out. For most of the year, the birds are on your side. RHS makes the point cleanly: the insects a gardener calls pests are food for birds, and birds in turn keep many insect populations down (RHS). A pair of blue tits will clear caterpillars off a brassica row faster than you ever will.
Most songbirds raise their young on insects, not on seed. Cornell Lab notes that native plants support far more caterpillars than exotic ones, and caterpillars are the food that builds nestlings (Cornell Lab of Ornithology). Fewer insects means fewer birds. A garden with fewer birds is not a garden with fewer problems. It has more.
The birds themselves are not in good shape either. The 2023 State of Nature report found that 43% of UK bird species are at risk of being lost within decades, the highest figure of any animal group (RHS). The same reporting found UK species declining by an average of 19% since 1970 (State of Nature). Long-running schemes such as the BTO’s Garden BirdWatch are how we know any of this (British Trust for Ornithology). Gardens are now part of the refuge these birds depend on.
Build a garden that needs fewer nets
Every bird fed well in one corner is a bird with less reason to raid the fruit. Not a guarantee. A help.
Keep the feeder at the opposite end of the plot from the soft fruit. The RSPB now advises pausing seeds and peanuts between May and October, to slow the spread of disease among finches, and it points to planting as the long-term answer. Sunflowers and teasels, or a stand of ivy, give birds natural food instead of a crowded table (RSPB).
A shallow pond or a bird bath helps, if you can change the water daily. A mixed hedge gives cover and berries in one move. A patch of long grass and a few unraked leaves feed the thrushes that pick slugs and grubs out of your beds.
None of this cancels the need for netting on a ripening cherry. It does shrink the number of fights you have to have.
Tight net, right gauge, up before colour, checked every morning. That combination does the real work. Everything else is a nudge. The birds will still visit, and most of the time you will be glad they did.