It’s once again safe to place bird feeders and bird baths outside.

A recent outbreak of an unknown bird illness, starting in late June, led to birds dying or becoming ill with conjunctivitis/neurological symptoms. Reports of ill birds have been decreasing over the past weeks — so much so that Friday the Pennsylvania Game Commission announced it is now safe to resume feeding birds.

A cause for the sickness has not been identified. Testing at the Pennsylvania Animal Diagnostic Laboratory System and New Bolton Center ruled out avian influenza, West Nile Virus, Newcastle Disease Virus, Salmonella, Chlamydia, herpesviruses, poxviruses, and Trichomonas parasites.