The Amazing Tree-Clinger Keep your eyes peeled on the bark of those Pennsylvania oaks this week for the acrobatic White-breasted Nuthatch. These "upside-down birds" are busy defying gravity as they scout for snacks, making them a true delight for local backyard birders. Listen for their distinct, nasal yank-yank call echoing through our woods to spot one before they zip away! #PABirding #WhiteBreastedNuthatch #birds #PennsylvanianWildlife #FelusProductions