Baddams shares the RSPB’s concerns and says we are “sleepwalking into a biodiversity collapse”.
“We’re seeing that nature across the board is going down, it’s going the wrong way,” he says.
Rather than using bird feeders, he encourages people to create “habitable places” in their gardens through native trees, shrubs and flowers to support birds.
Even window planter boxes can be more helpful.
He says: “There is no two ways about it. Bird feeders are the reason that we have lost huge numbers of greenfinches.
“We have to build ecosystems in our gardens and not fast food restaurants.”
Bird-friendly plants include lavender, sunflowers, hawthorn and ivy, which provide safer food sources and encourage insects, according to the Royal Horticultural Society.
Its senior wildlife expert, Helen Bostock, says: “Even small changes can make a meaningful difference to local bird populations and with spring now well under way, it’s the perfect time to get sowing and planting with birds in mind.”