| From DVOC's Delaware Valley Birds: "Marshes, swamps, and shallow water. Freeze limited." |  © Kevin Karlson Four calls of the Black-crowned Night-Heron recorded at Jakes Landing,
Dennis, New Jersey on May 1, 1993.
|
| From DVOC's Delaware Valley Birds: "Marshes, swamps, and shallow water. Freeze limited." | © Kevin Karlson Four calls of the Black-crowned Night-Heron recorded at Jakes Landing,
Dennis, New Jersey on May 1, 1993.
|