An Eastern Bluebird was seen in the West 80s of Central Park of Central Park on Friday (and again on Saturday).  It’s the state bird of New York.  This once-prolific bird had a sharp decline of population due to nesting cavity competition from European Starlings and House Sparrows.  Nest box programs started in the 1960s and 1970s have helped the species population numbers to improve but it remains an infrequent visitor to Central Park.