Species like striped bass,hornpout,white catfish,largemouth and smallmouth bass are doing well. What that means,is that many fishing birds come and feed here. Great Blue Heron are seen frequently,as are the ducks and geese that have been here all along. Osprey's and Bald Eagles can be seen during their migrations, but more toward the mouth of the river where it joins the Merrimac. Though common mammals abound,sightings of unusual animals have increased,such as otter.
Deer are all around the region,as are racoons,skunks,groundhogs,and squirrels.
Certain animals, like beaver, are becoming more of a problem. Beaver impacts on rivers and waterways are so dificult to deal with because of the laws protecting them.