Since its inception in 1979, the project has grown from a simple activity for junior members into a massive national effort involving over half a million people.
By gathering data on hundreds of thousands of gardens, the RSPB can build a vital, high-definition snapshot of how our bird populations are faring across the UK.
Participation is simple and open to everyone, whether you have a sprawling estate or a small urban balcony.
Between today (January 23) and Sunday (January 25), simply download the free guide and spend one hour tracking the birds that land in your chosen patch. Then, tell the RSPB what you saw (even if it’s nothing), by submitting your results either online or by post.
Even a big fat “zero” provides essential information to help with the survey - so long as you get your results back by the February 15 deadline.
Here are some of our favourite ornithological locations and what you could spot visiting our city this weekend.
7. Eccup Reservoir (LS17 7RJ)
The largest body of water in West Yorkshire. It is a Site of Special Scientific Interest (SSSI) and a world-renowned spot for Red Kites and wintering wildfowl like Goosander and Wigeon. | Roger Ratcliffe
8. Kirkstall Valley Nature Reserve (LS4 2DL)
Just two miles from the city centre, this linear park along the River Aire is surprisingly quiet. It’s an excellent spot for Grey Wagtails, Dipper, and Sparrowhawks patrolling the riverbank. | Mark Bickerdike
9. Water Haigh Woodland Park (LS26 8AL)
Located in Woodlesford, this park offers an intimate mix of interconnected habitats. Over 120 bird species have been recorded here, including Buzzards, Kestrels, and wintering Thrushes in the hedgerows. | Alan Davies