Why small birds need their own arrangement

A busy garden feeder is a competitive place. Fill a large, open feeder with a cheap seed mix and the first birds to arrive will usually be woodpigeons, starlings, magpies and the occasional jackdaw — bigger, bolder and perfectly happy to sit and eat their fill. Small birds such as blue tits, coal tits, goldfinches, siskins, chaffinches and greenfinches can look after themselves, but none of them can out-muscle a pigeon. Many will simply drift away rather than spend the day being displaced.

The good news is that small birds are fussy in very predictable ways. Give them a feeder they can grip comfortably, food they can handle quickly, and a perch that a larger bird finds awkward, and they will reward you with steady, close-up visits throughout the year.

Perches, ports and the shape of the feeder

Perch length is the detail most people overlook, and it matters more than almost anything else. Small birds like a short, firm perch — around 10mm in many hanging feeders — that lets them land, balance and reach the port without shuffling about. Long perches and wide, open feeding trays invite larger birds to settle in and stay put. If you can find a feeder with small perches spaced a few centimetres apart, so much the better.

Port size counts too. A circular port of roughly 20–25mm suits tits, finches and siskins; anything much wider turns the feeder into a general-purpose bird table. Mesh feeders for nyjer seed work precisely because the fine holes suit slender finch beaks and defeat most other birds.

Hanging feeders tend to swing, and that gentle movement puts off heavier birds while small ones take it entirely in their stride. A pole-mounted feeder with a dome or baffle above it offers a similar advantage and keeps food off the ground, where it feeds rats rather than tits.

Choose light, easy food

Small birds prefer light seed mixes — the sort made up mostly of small grains and husked or de-husked seed, rather than heavy, cheap blends padded out with wheat, oats, barley and split peas. Those bulky ingredients are the main reason a feeder empties so quickly and so little of it gets eaten.

• Sunflower hearts are the closest thing to a universal food, taken by tits, finches, sparrows and robins with no husks left behind.
• Nyjer seed in a fine mesh or tiny-port feeder is the classic choice for goldfinches and siskins.
• Kibbled peanuts or peanut granules are safer than whole peanuts for small and young birds, and go down well from a mesh feeder.
• Suet pellets and small fat balls give quick energy in cold spells and are easy for small beaks to break apart.

If you do use a mixed seed, look for a husk-free or no-grow blend, and fit a seed tray beneath the feeder to catch spillage before it draws in pigeons and rats.

Placement: height, cover and predators

Position does as much work as design. Hang feeders roughly 1.5 to 2 metres above the ground — high enough to be out of reach of a cat's leap, low enough to watch comfortably from a window. Keep them at least two metres from dense shrubs, hedges or fences that a cat might use as a hiding place, yet still within a few metres of some cover so small birds have somewhere to dash when a sparrowhawk appears.

Window strikes are a genuine risk, especially for young birds in their first autumn. Either place feeders within a metre of the glass, where birds cannot build up speed, or more than three metres away. Where squirrels are a nuisance, a baffle on a pole, or a feeder hung from a taut wire between two points, will keep them off far more effectively than a loop over a branch.

Keeping visits steady through the year

Small birds are creatures of habit. Once a feeder is part of their daily route, they will check it every morning, so a feeder left empty for several days can lose its regulars to a neighbour's garden. Top up little and often, ideally early in the day, and keep feeding through spring and summer rather than packing everything away in March. Parent birds raising young depend on a dependable supply, and the benefit lasts far beyond the coldest weeks.

Hygiene is part of reliability, not a chore bolted on at the end. Clean feeders every week or fortnight with hot water and a mild disinfectant, rinse thoroughly, and let them dry before refilling. Bin any damp or clumped seed, rotate feeders if you have more than one, and be especially attentive in warm weather, when disease spreads quickly among finches. A clean feeder with short perches, filled with light food and hung clear of predators, is the whole of the art — the birds will handle the rest.