As certain bird-specific diseases are spreading through the UK, a warning has been issued by the RSPB for those who have bird feeders in their garden. Feeders, while important, play a vital role in nourishing birds during the cold and icy winter months.

This is when birds struggle for food and compete with migratory species. On top of this, destructive farming practices have also led to a steep decline in the amount of food available for birds. According to government , bird numbers have declined by 2% across the UK between 2018 to 2023, and by 7% across England.

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However, those who choose to use flat bird feeders have been warned that they may be spreading fatal illnesses through the UK bird population. In particular, diseases like trichomonosis can easily be spread through these bird feeders if an infected bird drops a piece of food and another healthy bird picks it up. Trichomonosis is a deadly parasite that spreads through wild birds, infecting their mouth, nose and throat. Eventually, it makes it so hard to breathe and swallow that the afflicted birds starve to death. At particular risk are finches and pigeons – though it can affect a wide range of species.

"We know so many of you love feeding your garden birds and some bird species really do benefit from us putting out extra food for them, especially in winter," the RSPB advises. "However, there is increasing evidence that for other birds there can also be negative effects such as the spread of disease, especially among finches."

A spokesperson for the charity explained further: "As a precautionary measure, whilst we await the findings of the review, we have suspended all our bird tables and related products, table mix and table mix extra, window feeders and feeder guardians with trays, from sale. This is because there is evidence to suggest that some birds, particularly finches, can be more exposed to disease when fed on flat surfaces like these."

However, for those still keen to feed their garden birds, there are safer alternatives. Suspended feeders are typically a more hygienic option, as they prevent cross-contamination by dropping food to birds more slowly.

Otherwise, you can scatter food across flat areas of your garden, such as the patio or driveway. Although it is important to keep these areas clean and rotate them regularly in order to prevent spreading disease.