Purple martins have nested at St. Luke’s Anderson Campus for the second straight year.
The birds’ return heralds the establishment of a new, perennial colony within the expansive greenspace at the Anderson Campus in Bethlehem Township.
Purple Martins, which migrate northward from as far south as the Amazon jungle to spend the spring and summer in the United States, were once commonplace in Lehigh and Northampton counties. They depend on man-made nesting sites, which local farmers used to erect since the birds would eat the bugs that might otherwise destroy their crops…