Sudbury Valley TrusteesConservation, Collaboration, and Community since 1953
Search By Species
- American Black Duck (2)
- American Bullfrog (15)
- American Coot (6)
- American Copper (1)
- American Crow (7)
- American Goldfinch (12)
- American Kestrel (3)
- American Lady Butterfly (2)
- American lotus (2)
- American Robin (19)
- American Toad (11)
- American Wigeon (1)
- American Woodcock (4)
- Bald Eagle (25)
- Bald-faced Hornet (1)
- Baltimore checkerspot (1)
- Baltimore Oriole (12)
- Bank Swallows (1)
- Barn Swallow (6)
- Barnacle Goose (1)
- Barred Owl (14)
- Barrow's Goldeneye (1)
- Baskettail Dragonfly (1)
- Beaver (26)
- Beefsteak Fungus (1)
- Belted Kingfisher (11)
- Black and Yellow Argiope (1)
- Black Racer (5)
- Black Swallowtail (4)
- Black-billed Cuckoo (1)
- Black-capped Chickadee (19)
- Black-crowned Night Heron (5)
- Black-eyed Susan (1)
- Bloodroot (2)
- Blue Dasher (1)
- Blue Flag Iris (1)
- Blue Jay (15)
- Blue-gray Gnatcatcher (1)
- Blue-spotted Salamander (3)
- Blue-winged Teal (3)
- Blue-winged Warbler (3)
- Bluet (2)
- Bluet Damselfly (1)
- Bobcat (11)
- Bobolink (10)
- Broad-winged Hawk (3)
- Broadleaf Arrowhead (1)
- Bronze Copper (2)
- Brown Creeper (4)
- Brown Snake (1)
- Brown Thrasher (1)
- Brown-headed Cowbird (1)
- Bufflehead (1)
- Bumble Bee (6)
- Buttonbush (2)
- Cabbage White (2)
- Canada Geese (1)
- Canada Goose (33)
- Canada Mayflower (3)
- Canvasback (1)
- Cardinal Flower (1)
- Carolina Wren (8)
- Cecropia Moth (1)
- Cedar Waxwing (11)
- Chestnut Tree (1)
- Chimney Swift (1)
- Chipping Sparrow (4)
- Cicada (1)
- Clouded Sulphur Butterfly (2)
- Colonial Bryozoan (1)
- Common Arrowhead (1)
- Common Garter Snake (18)
- Common Goldeneye (1)
- Common Grackle (5)
- Common Green Darner (1)
- Common Merganser (8)
- Common Moorhen (2)
- Common Nighthawk (5)
- Common Redpoll (3)
- Common Ringlet (2)
- Common Whitetail (4)
- Common Yellowthroat (12)
- Compton Tortoiseshell Butterfly (1)
- Cooper's Hawk (8)
- Coral Fungus (1)
- Cotton-tailed Rabbit (16)
- Coyote (36)
- Crayfish (1)
- Dark-eyed Junco (6)
- Delaware Skipper (1)
- Dimorphic Jumping Spider (1)
- Dogbane Beetle (1)
- Dolomedes Raft Spider (1)
- Dot-tailed Whiteface (1)
- Double-crested Cormorant (8)
- Downy Rattlesnake Plantain (4)
- Downy Woodpecker (22)
- Dragonfly (8)
- Drexel's Datana (1)
- Dwarf Ginseng (1)
- Early Saxifrage (1)
- Eastern Amberwing (1)
- Eastern Blue-eyed Grass (1)
- Eastern Bluebird (37)
- Eastern Box Turtle (4)
- Eastern Brook Trout (1)
- Eastern Carpenter Bee (1)
- Eastern Chipmunk (15)
- Eastern Comma (2)
- Eastern Kingbird (7)
- Eastern Musk Turtle (1)
- Eastern Phoebe (20)
- Eastern Pine Elfin (1)
- Eastern Pondhawk (1)
- Eastern Red-backed Salamander (3)
- Eastern Ribbon Snake (1)
- Eastern Screech Owl (5)
- Eastern Skunk Cabbage (1)
- Eastern Tailed-Blue (1)
- Eastern Tiger Swallowtail (2)
- Eastern Towhee (11)
- Eastern Wood-Pewee (3)
- Eastern-tailed Blue (1)
- Ebony Jewelwing (7)
- European Starling (2)
- Eyed Brown (1)
- Fisher (127)
- Flying Squirrel (19)
- Forest Tent Caterpillar (1)
- Fringed Polygala (3)
- Garter Snake (1)
- Glossy Ibis (3)
- Golden-crowned Kinglet (7)
- Goldthread (1)
- Grasshopper (1)
- Grasshopper Sparrow (1)
- Gray Catbird (21)
- Gray Fox (3)
- Gray Hairstreak (1)
- Gray Squirrel (21)
- Gray Tree Frog (8)
- Great Blue Heron (77)
- Great Crested Flycatcher (6)
- Great Egret (4)
- Great Grey Slug (1)
- Great Horned Owl (25)
- Great Spangled Fritillary (1)
- Green Frog (7)
- Green Heron (7)
- Green Metallic Bee (1)
- Green Stink Bug (1)
- Green-winged Teal (7)
- Hairy Woodpecker (5)
- Helleborine (1)
- Hermit Thrush (4)
- Honey Bee (4)
- Hooded Merganser (16)
- Horned Grebe (1)
- House Finch (1)
- House Wren (5)
- Huckleberry Sphinx Moth (1)
- Hummingbird Clearwing Moth (5)
- Indian Cucumber Root (2)
- Indian Pipe (5)
- Indigo Bunting (5)
- Jack-in-the-pulpit (4)
- Jumping Spider (1)
- Juvenal's Duskywing (2)
- Katydid (1)
- Killdeer (4)
- Lady Beetle (2)
- Large-flowered Trillium (1)
- Le Conte's Sparrow (1)
- Least Sandpiper (1)
- Leopard Frog (1)
- Leopard Moth (1)
- Lesser Scaup (3)
- Lily of the Valley (2)
- Little Brown Bat (3)
- Little Wood Satyr (2)
- Lobster Mushroom (3)
- Long-tailed Weasel (13)
- Magnolia Warbler (1)
- Mallard (26)
- Maple-leaf Viburnum (1)
- Marsh Horsetail (1)
- Marsh Marigold (4)
- Marsh St. Johns Wort (1)
- Marsh Wren (5)
- Mayfly (1)
- Merlin (3)
- Milk Snake (1)
- Milkweed (1)
- Milkweed Beetle (1)
- Mink (14)
- Monarch Butterfly (5)
- Moose (1)
- Morel Mushroom (2)
- Mourning Cloak (4)
- Mourning Dove (13)
- Mouse (13)
- Mullein (1)
- Muskrat (23)
- Mute Swan (13)
- Nodding Ladies Tresses (1)
- Nodding Trillium (1)
- Northern Cardinal (15)
- Northern Flicker (15)
- Northern Goshawk (1)
- Northern Harrier (4)
- Northern Leopard Frog (1)
- Northern Mockingbird (3)
- Northern Parula (1)
- Northern Pike (1)
- Northern Pintail (1)
- Northern Redbelly Snake (1)
- Northern Rough-winged Swallow (1)
- Northern Shoveler (1)
- Northern Shrike (1)
- Northern Water Snake (22)
- Northern Waterthrush (1)
- Opossum (10)
- Osprey (20)
- Ovenbird (4)
- Painted Turtle (25)
- Palm Warbler (6)
- Pearl Crescent Butterfly (1)
- Perfoliate Bellwort (1)
- Phantom Crane Fly (1)
- Pickerel Frog (3)
- Pied-billed Grebe (3)
- Pileated Woodpecker (16)
- Pine Siskin (9)
- Pine Warbler (3)
- Pinesap (3)
- Pink Lady's Slipper (17)
- Pink-footed Goose (3)
- Pokeweed (1)
- Potter Wasp (1)
- Pumpkinseed (1)
- Purple Finch (2)
- Pussy Willow (2)
- Question Mark (1)
- Raccoon (102)
- red admiral butterfly (1)
- Red Eft (2)
- Red Fox (60)
- Red Squirrel (18)
- Red Trillium (2)
- Red-bellied Woodpecker (15)
- Red-breasted Nuthatch (5)
- Red-eyed Vireo (1)
- Red-shouldered Hawk (4)
- Red-spotted Admiral Butterfly (2)
- Red-tailed Hawk (45)
- Red-winged Blackbird (21)
- Ring-billed Gull (1)
- Ring-necked Duck (10)
- Ring-necked Pheasant (1)
- River Jewelwing (1)
- River Otter (21)
- Rose-breasted Grosbeak (12)
- Ruby Crowned Kinglet (1)
- Ruby Meadowhawk (2)
- Ruby-throated Hummingbird (17)
- Ruddy Duck (1)
- Ruffed Grouse (2)
- Rusty Blackbird (2)
- Sand Wasp (1)
- Sassafras (1)
- Savannah Sparrow (3)
- Scarlet Tanager (6)
- Seed Bug (1)
- Shadow Darner Dragonfly (2)
- Shaggy Mane (2)
- Sharp-shinned Hawk (7)
- Shining Clubmoss (1)
- Skimming Bluet (1)
- Skunk (4)
- Slaty Skimmer (1)
- Snapping Turtle (37)
- Snow Flea (1)
- Snow Goose (1)
- Snowshoe Hare (1)
- Solitary Sandpiper (6)
- Song Sparrow (13)
- Sora (1)
- Spicebush Swallowtail (1)
- Spotted Salamander (10)
- Spotted Sandpiper (1)
- Spotted Turtle (8)
- Spring Azure (2)
- Spring Peeper (8)
- Square-stemmed Monkey Flower (1)
- Squawroot (1)
- Stag Beetle (1)
- Starflower (3)
- Striped Hairstreak (1)
- Striped Wintergreen (2)
- Sulfur Cinquefoil (1)
- Swamp Azalea (1)
- Swamp Sparrow (3)
- The Infant Moth (1)
- Thistle (1)
- Tree Swallow (16)
- Trout Lily (1)
- Trumpeter Swan (1)
- Tufted Duck (3)
- Tufted Titmouse (9)
- Turkey (34)
- Turkey Vulture (7)
- Turtlehead (1)
- Twelve-spotted Skimmer (1)
- Variable Dancer (1)
- Veery (1)
- Viceroy Butterfly (2)
- Violet (2)
- Virginia Rail (2)
- Walkingstick (2)
- Warbling Vireo (1)
- Wasp (1)
- Water Strider (2)
- Whip-poor-will (2)
- White Slant-line Moth (1)
- White-breasted Nuthatch (17)
- White-tailed Deer (157)
- White-throated Sparrow (6)
- Widow Skimmer (2)
- Wild Columbine (5)
- Wild Geranium (2)
- Willow Flycatcher (1)
- Witch-Hazel (1)
- Wood Anemone (3)
- Wood Duck (33)
- Wood Frog (17)
- Wood Thrush (3)
- Woodchuck (11)
- Yellow Jacket (1)
- Yellow Perch (1)
- Yellow Warbler (6)
- Yellow-bellied Sapsucker (1)
- Yellow-billed Cuckoo (1)
- Yellow-headed Blackbird (1)
- Yellow-rumped Warbler (9)
- Zabulon Skipper (1)
Canada geese on the Assabet River
Sighting Date:
September 7, 2008 
Dana Dykiel photographed these Canada geese on the Assabet River in Acton.
