Here’s the list of bird species seen by Tom in Massachusetts and on Plum Island in 2023. All birds on the list were seen in Massachusetts. Birds in boldface were also seen on Plum Island. There are 80 species on the list, with 75 on Plum Island.
| Canada Goose | Horned Grebe | Bald Eagle | Brown Creeper |
| Mute Swan | Red-necked Grebe | Red-tailed Hawk | Carolina Wren |
| Gadwall | Rock Pigeon | Rough-legged Hawk | Gray Catbird |
| Mallard | Mourning Dove | Eastern Screech-Owl | Northern Mockingbird |
| American Black Duck | Sanderling | Snowy Owl | European Starling |
| Northern Pintail | Dunlin | Barred Owl | Hermit Thrush |
| Green-winged Teal | Purple Sandpiper | Red-bellied Woodpecker | American Robin |
| Greater Scaup | Long-billed Dowitcher | Yellow-bellied Sapsucker | House Sparrow |
| Lesser Scaup | Wilson's Snipe | Downy Woodpecker | House Finch |
| King Eider | Razorbill | Merlin | Purple Finch |
| Common Eider | Black-legged Kittiwake | Peregrine Falcon | Red Crossbill |
| Surf Scoter | Ring-billed Gull | Blue Jay | American Goldfinch |
| White-winged Scoter | Herring Gull | American Crow | Snow Bunting |
| Black Scoter | Great Black-backed Gull | Common Raven | American Tree Sparrow |
| Long-tailed Duck | Red-throated Loon | Black-capped Chickadee | Dark-eyed Junco |
| Bufflehead | Common Loon | Tufted Titmouse | White-throated Sparrow |
| Common Goldeneye | Northern Gannet | Horned Lark | Song Sparrow |
| Hooded Merganser | Northern Harrier | Cedar Waxwing | Palm Warbler |
| Common Merganser | Sharp-shinned Hawk | Red-breasted Nuthatch | Yellow-rumped Warbler |
| Red-breasted Merganser | Cooper's Hawk | White-breasted Nuthatch | Northern Cardinal |