Pair of mute swans with cygnet following.Mute swans are an agressive invasive species along the East Coast.There are now over 3,000 mute swans in the Maryland portionof the Chesapeake Bay.
Photographer: Mary Hollinger
Affiliation: NODC biologist
Date: 1998 July 12
Location: Maryland, Near mouth of Patuxent River
Subject: Chesapeake Bay Maryland