A very rare white-winged tern perches on a post at Lake Nessmuk in Tioga County.
A very rare white-winged tern perches on a post at Lake Nessmuk in Tioga County. Mark Nale For the CDT
A very rare white-winged tern perches on a post at Lake Nessmuk in Tioga County. Mark Nale For the CDT

Extremely rare birds visit Pennsylvania this summer

August 19, 2017 11:29 PM