Here’s the list of bird species seen by Tom in Massachusetts and on Plum Island in 2012. All birds on the list were seen in Massachusetts. Birds in boldface were also seen on Plum Island. There are 243 species on the list, with 242 on Plum Island.
| Snow Goose | Killdeer | Yellow-bellied Flycatcher | Bay-breasted Warbler |
| Brant | American Oystercatcher | Alder Flycatcher | Blackburnian Warbler |
| Canada Goose | Spotted Sandpiper | Willow Flycatcher | Yellow Warbler |
| Mute Swan | Solitary Sandpiper | Least Flycatcher | Chestnut-sided Warbler |
| Wood Duck | Greater Yellowlegs | Eastern Phoebe | Blackpoll Warbler |
| Gadwall | Willet | Say's Phoebe | Black-throated Blue Warbler |
| Eurasian Wigeon | Lesser Yellowlegs | Great Crested Flycatcher | Palm Warbler |
| American Wigeon | Whimbrel | Eastern Kingbird | Pine Warbler |
| American Black Duck | Hudsonian Godwit | Northern Shrike | Yellow-rumped Warbler |
| Mallard | Ruddy Turnstone | White-eyed Vireo | Black-throated Green Warbler |
| Blue-winged Teal | Red Knot | Yellow-throated Vireo | Canada Warbler |
| Northern Shoveler | Sanderling | Blue-headed Vireo | Wilson's Warbler |
| Northern Pintail | Semipalmated Sandpiper | Warbling Vireo | Yellow-breasted Chat |
| Green-winged Teal | Western Sandpiper | Red-eyed Vireo | Eastern Towhee |
| Redhead | Least Sandpiper | Blue Jay | American Tree Sparrow |
| Ring-necked Duck | White-rumped Sandpiper | American Crow | Chipping Sparrow |
| Greater Scaup | Baird's Sandpiper | Common Raven | Field Sparrow |
| Lesser Scaup | Pectoral Sandpiper | Horned Lark | Lark Sparrow |
| Common Eider | Purple Sandpiper | Purple Martin | Savannah Sparrow |
| Surf Scoter | Dunlin | Tree Swallow | Saltmarsh Sparrow |
| White-winged Scoter | Stilt Sandpiper | Northern Rough-winged Swallow | Seaside Sparrow |
| Black Scoter | Short-billed Dowitcher | Bank Swallow | Song Sparrow |
| Long-tailed Duck | Long-billed Dowitcher | Cliff Swallow | Swamp Sparrow |
| Bufflehead | Wilson's Snipe | Cave Swallow | White-throated Sparrow |
| Common Goldeneye | American Woodcock | Barn Swallow | White-crowned Sparrow |
| Hooded Merganser | Wilson's Phalarope | Black-capped Chickadee | Dark-eyed Junco |
| Common Merganser | Red-necked Phalarope | Tufted Titmouse | Scarlet Tanager |
| Red-breasted Merganser | Black-legged Kittiwake | Red-breasted Nuthatch | Northern Cardinal |
| Ruddy Duck | Bonaparte's Gull | White-breasted Nuthatch | Rose-breasted Grosbeak |
| Wild Turkey | Laughing Gull | Brown Creeper | Indigo Bunting |
| Red-throated Loon | Ring-billed Gull | House Wren | Bobolink |
| Common Loon | Herring Gull | Winter Wren | Red-winged Blackbird |
| Pied-billed Grebe | Iceland Gull | Marsh Wren | Eastern Meadowlark |
| Horned Grebe | Great Black-backed Gull | Carolina Wren | Rusty Blackbird |
| Red-necked Grebe | Least Tern | Blue-gray Gnatcatcher | Common Grackle |
| Western Grebe | Caspian Tern | Golden-crowned Kinglet | Brown-headed Cowbird |
| Northern Gannet | Roseate Tern | Ruby-crowned Kinglet | Orchard Oriole |
| Double-crested Cormorant | Common Tern | Veery | Baltimore Oriole |
| Great Cormorant | Forster's Tern | Swainson's Thrush | Pine Grosbeak |
| American White Pelican | Pomarine Jaeger | Hermit Thrush | Purple Finch |
| American Bittern | Parasitic Jaeger | Wood Thrush | House Finch |
| Least Bittern | Thick-billed Murre | American Robin | Red Crossbill |
| Great Blue Heron | Razorbill | Gray Catbird | White-winged Crossbill |
| Great Egret | Rock Pigeon | Northern Mockingbird | Common Redpoll |
| Snowy Egret | Mourning Dove | Brown Thrasher | Hoary Redpoll |
| Little Blue Heron | Yellow-billed Cuckoo | European Starling | Pine Siskin |
| Green Heron | Black-billed Cuckoo | American Pipit | American Goldfinch |
| Black-crowned Night-Heron | Snowy Owl | Cedar Waxwing | House Sparrow |
| Yellow-crowned Night-Heron | Barred Owl | Lapland Longspur | |
| Glossy Ibis | Long-eared Owl | Snow Bunting | |
| Turkey Vulture | Short-eared Owl | Ovenbird | |
| Osprey | Northern Saw-whet Owl | Worm-eating Warbler | |
| Bald Eagle | Eastern Whip-poor-will | Northern Waterthrush | |
| Northern Harrier | Chimney Swift | Blue-winged Warbler | |
| Sharp-shinned Hawk | Ruby-throated Hummingbird | Black-and-white Warbler | |
| Cooper's Hawk | Belted Kingfisher | Tennessee Warbler | |
| Red-tailed Hawk | Red-bellied Woodpecker | Orange-crowned Warbler | |
| Rough-legged Hawk | Yellow-bellied Sapsucker | Nashville Warbler | |
| Virginia Rail | Downy Woodpecker | Mourning Warbler | |
| Sora | Hairy Woodpecker | Kentucky Warbler | |
| American Coot | Northern Flicker | Common Yellowthroat | |
| Black-bellied Plover | American Kestrel | American Redstart | |
| American Golden-Plover | Merlin | Cape May Warbler | |
| Semipalmated Plover | Peregrine Falcon | Northern Parula | |
| Piping Plover | Eastern Wood-Pewee | Magnolia Warbler |