The California Department of Fish and Wildlife confirmed on Wednesday that two mute swans tested positive for the avian influenza at Mather Regional Park. Dozens of swans were reported dead at Mather Lake in Sacramento County back in late November.

Bird flu is suspected to have caused the death of multiple wild birds recovered across the state last week, New Jersey Fish and Wildlife announced. At least seven snow geese, two Canada geese, and two hawks have yielded presumptive positive results so far for avian influenza,