The RSPB has changed its guidance on feeding garden birds, warning against some of the feeders, foods and practices bird lovers have used for decades. As many gardeners rush to send their bird feeders to the wheelie bin, and the Royal Horticultural Society (RHS) announces it will no longer sell bird seed mixes and peanuts during the summer, this is a change sparking a lot of conversation in the gardening world . To avoid inadvertently harming local wildlife, it's important to understand the new guidance and recommendations. So here's everything you need to know to protect your garden birds this year. What is the new guidance on bird feeders? The RSPB's new guidance comes in four key parts. Make these four changes to care for your garden birds this year. Clean and move bird feeders weekly. Avoid filling bird feeders with seeds and peanuts between 1 May and 31 October. Small amounts of mealworms, fat balls and suet are fine. Avoid using bird feeders with flat surfaces.…