(Image credit: Shutterstock) Experts and conservationists are warning households to rethink their bird-feeding habits this summer. The focus is shifting away from traditional feeders toward natural habitats and hygiene to prevent the spread of disease. Trichomonosis, a highly contagious disease, is causing a decline in garden bird populations, with the U.K.'s Royal Society for the Protection of Birds (RSPB) organization saying it spreads where birds gather in large numbers. And it’s for this reason that the nature conservation charity advises against feeding the birds from May to October. (Image credit: Shutterstock) It’s a similar story in the U.S., with organizations like the Audubon Society advising against feeding garden birds during outbreaks of Avian Influenza, House Finch Eye Disease and Trichomonosis. While I’ve taken down my bird feeders, I still want to encourage these small creatures to visit my yard, so I asked experts how to support garden birds naturally.…