Bird feeders in Central Oregon and elsewhere are spreading salmonella that’s killing birds…notably pine siskins and finches. The Bulletin reports in the winter when many birds congregate at feeders, wildlife officials say the birds leave feces infected with salmonella that can spread to other birds. The salmonella outbreak has been reported as far away as San Francisco and British Columbia. Pine siskins are starting to leave the area and it’s expected the outbreak will slow down. Wildlife officials suggest cleaning bird feeders about once-a-week with a diluted bleach solution.