
By Sara McCabe Birders and conservationists have been overjoyed by the discovery this spring of a great blue heron rookery in the Alewife Brook Reservation. Many believe this to be the only great blue heron roost for at least 20 miles. The herons’ selection of Jerry’s Pond in North Cambridge as the site for their two nests is especial cause for excitement. This artificial pond was created in 1870 from an old clay pit, used as a public swimming hole from 1913 to 1961, then closed for suspected contamination. It has been fenced off for nearly 60 years despite its [READ MORE]














