Poultry farmers forced to kill million-plus birds to control outbreak of avian flu in Sonoma County
                                
                                
                                    (Newser) -
                                    Last month, Mike Weber got the news every poultry farmer fears: His chickens tested positive for avian flu. Following government rules, Weber's company, Sunrise Farms, had to slaughter its entire flock of egg-laying hens—550,000 birds—to prevent the disease from infecting other farms in Sonoma County, north...