Mid Patuxent River 1998 April 28 674. Mute swans are an agressive invasive species. There are now over 3,000 mute swans in the Maryland portion of the Chesapeake Bay. Lower Patuxent River, Maryland 1999 May 22 675. Mute swans with 8 cygnets.
Mute swans are an agressive invasive species.
There are now over 3,000 mute swans in the Maryland portion of the Chesapeake Bay. Lower Patuxent River, Maryland 1999 May 22 676. Mute swans are an agressive invasive species. There are now over 3,000 mute swans in the Maryland portion of the Chesapeake Bay. Lower Patuxent River, Maryland 1999 May 22 677.