Big Garden Birdwatch: A Practical Guide
Bramwell Views
Every January, hundreds of thousands of people across the UK spend an hour counting the birds in their garden, on their balcony or in their local park for the RSPB's Big Garden Birdwatch. The results show how garden birds are faring year on year. It is free, it takes an hour, and it is one of the easiest ways to start birdwatching. This guide covers how it works, how to prepare, and how to get more from the hour with binoculars.
When it happens
The Big Garden Birdwatch runs over a weekend in late January. In 2026 it ran from Friday 23 to Sunday 25 January. The RSPB says registrations for the 2027 Birdwatch open on 9 December; confirm the dates on the RSPB Big Garden Birdwatch page.
The rules
- Watch for one hour at a time of your choice during the Birdwatch weekend.
- Count birds that land in your garden, on your balcony or in the part of the park you are watching. Birds flying over do not count.
- Record the highest number of each species seen at any one time, not the total number of visits. If two blackbirds arrive, leave, and then three arrive together, you record three.
- Send in your results through the RSPB, including a nil or low count, which is useful data too.
The RSPB publishes the full rules and submission deadlines each year, so check its page before you start.
Get ready in the week before
- Top up the feeders a few days ahead so birds have found them by the weekend.
- Offer a mix: seed, suet and a little fruit bring in different species.
- Put out shallow water. Birds need to drink and bathe in freezing weather.
- Pick your spot. Choose a window or a seat with a clear view of the feeders and some cover, such as a hedge or shrub, where birds wait before coming in.
- Choose your hour. Early to mid morning is usually busiest at feeders.
- Have a pencil, paper and an identification guide or the RSPB's counting sheet ready.
Using binoculars for a garden count
Open the window if you can
Window glass, especially double glazing, softens the image through binoculars and can add reflections and doubled edges. A partly open window gives a noticeably clearer view. Keep still and keep your movements slow, or the birds will see you before you see them.
Watch the close focus distance
Every binocular has a minimum distance at which it will focus. If your feeder is closer than that, you will not get a sharp image however you turn the wheel. Our 10x42 binocular focuses from 3 m, so sit at least 3 m back from the feeder, or move the feeder further out. Many birding binoculars focus closer, and an 8x model is easier to use at short range. Our 8x42 vs 10x42 guide explains the difference.
Look at the cover, not only the feeder
Wrens, dunnocks and song thrushes often stay in or under shrubs. Scan the hedge bottom and the lawn edge with binoculars between counts at the feeder.
Set them up before the hour starts
Adjust the width, eyecups and dioptre in advance so you do not lose the first ten minutes. The steps are in our guide to choosing binoculars for birdwatching.
Five common mix-ups
| Bird | Often confused with | What to check |
|---|---|---|
| Dunnock | House sparrow (female) | Dunnock has a thin, pointed bill and a grey head and breast. Sparrows have a stubby, seed-eating bill. |
| Song thrush | Blackbird (female) | Song thrush has a pale breast with neat dark spots. Female blackbirds are dark brown all over with only faint mottling. |
| Coal tit | Great tit | Coal tit is smaller with a white patch on the back of the neck and no yellow. Great tit has a yellow breast with a black stripe down the middle. |
| Chaffinch (female) | House sparrow (female) | Female chaffinch shows clear white wing bars and white outer tail feathers in flight. |
| Starling | Blackbird (male) | Starling is shorter-tailed, glossy and speckled in winter, and walks rather than hops. |
Common counting mistakes
- Adding up visits. Record the most of each species you see at one moment.
- Counting birds flying over. Only birds that land count.
- Guessing an uncertain bird. If you cannot identify it, leave it out.
- Not submitting a quiet hour. Low counts are real results and help show where birds are declining.
Making it a family hour
Give each person a job: one counts, one writes, one watches the hedge. Children often find a bird more quickly with their eyes first and then with binoculars, so show them how to keep looking at the bird while lifting the binoculars to their eyes. Keep a picture guide of the ten most likely species on the table.
After the weekend
If the count sparks an interest, keep the feeders going. February and March bring birds into song and pairs into gardens, and the same hour at the window becomes a regular habit. When you want to look further afield, our guide to choosing binoculars and our binoculars are a good place to start.
