| Beach Tracking, Felix Neck - 5/25/13 |
| Birding By Ear, Arcadia - 5/25/13 |
| Birds of Prey, Boston Nature Center - 5/25/13 |
| Early-Morning Birding, Arcadia - 5/25/13 |
| Get Out & Go Birding, Boston Nature Center - 5/25/13 |
| Owls for Kids, Felix Neck - 5/25/13 |
| Saturday Morning Bird Walk, Drumlin Farm - 5/25/13 |
| Saturday Morning Birding, Joppa Flats - 5/25/13 |
| Spring Songbird Walk, Wellfleet Bay - 5/25/13 |
| Get Out & Go Birding, Boston Nature Center - 5/26/13 |
| HIP Morning Birding Walks May, Habitat - 5/26/13 |
| Beach Ramble, Allens Pond - 5/27/13 |
| Early Birds, Wellfleet Bay - 5/27/13 |
| North Beach Island Birding, Wellfleet Bay - 5/27/13 |
| Birding the South Coast, Wellfleet Bay - 5/28/13 |
| Early Morning Birds, Stony Brook - 5/28/13 |
| Alaska, Drumlin Farm - 5/29/13 |
| Spring Bird and Wildflower Walk, Wildwood Camp - 5/29/13 |
| Wednesday Evening Birding, Joppa Flats - 5/29/13 |
| Wednesday Morning Birding, Joppa Flats - 5/29/13 |
| Birding the Billings Loop 5, Moose Hill - 5/30/13 |
 |
| Early Morning Bird Walk with Jack Lash, Oak Knoll - 5/30/13 |
| Focus on Grassland Birds, Joppa Flats - 5/30/13 |
| Bird Walks at Canoe Meadows, Pleasant Valley - 5/31/13 |
| Birding with Friends, Allens Pond - 5/31/13 |
| Friday Morning Bird Walk, North River - South Shore - 5/31/13 |
| Friday Morning Bird Walks: Focus on Warblers, Joppa Flats - 5/31/13 |
| Friday Morning Birds, Broad Meadow Brook - 5/31/13 |
| North Monomoy Island Exploration, Wellfleet Bay - 5/31/13 |
| Birds and Brunch Along the Ipswich River, Ipswich River - 6/1/13 |
| Sanctuary Walk, Broad Meadow Brook - 6/1/13 |
| Saturday Morning Birding, Joppa Flats - 6/1/13 |
| Spring Birding Exploration, Broadmoor - 6/1/13 |
| Spring into Birding Walk, Wellfleet Bay - 6/1/13 |
| Teen Birders: Birds and Brunch, Drumlin Farm - 6/1/13 |
| Biodiversity Free-For-All!, Joppa Flats - 6/2/13 |
| Birding Fowl Meadow, Blue Hills Trailside Museum - 6/2/13 |
| Birding Pawtuckaway State Park, New Hampshire, Joppa Flats - 6/3/13 |
| Junior Bird Club, Allens Pond - 6/5/13 |
| State of the Birds: Recovering the American Oystercatcher, Wellfleet Bay - 6/5/13 |
| Wednesday Morning Birding, Joppa Flats - 6/5/13 |
| Lieutenant Island Hike, Wellfleet Bay - 6/6/13 |
| Friday Morning Bird Walk, North River - South Shore - 6/7/13 |
| Friday Morning Birds, Broad Meadow Brook - 6/7/13 |
| Kinglet Birders: Water Birds, Drumlin Farm - 6/7/13 |
| North Monomoy Island Exploration, Wellfleet Bay - 6/7/13 |
| Beach Ramble, Allens Pond - 6/8/13 |
| Beach Tracking, Felix Neck - 6/8/13 |
| Birds of the Charles River Canoe, Broadmoor - 6/8/13 |
| Saturday Morning Birding, Joppa Flats - 6/8/13 |
| Spring Songbird Walk, Wellfleet Bay - 6/8/13 |
| The Wonder and the Wow: Plum Island River Kayak Paddle, Joppa Flats - 6/8/13 |
| Great Blue Heron Rookery, Drumlin Farm - 6/9/13 |
| Spring Birding Exploration, Broadmoor - 6/9/13 |
| Take a Walk on the Wild Side: Mud Flats at Joppa, Joppa Flats - 6/9/13 |
| Wednesday Morning Birding, Joppa Flats - 6/12/13 |
| Arctic Norway: Ice Bears Cruise, Mass Audubon Tours - 6/14/13 |
| Friday Morning Bird Walk, North River - South Shore - 6/14/13 |
| North Monomoy Island Exploration, Wellfleet Bay - 6/14/13 |
| Chirps, Cheeps, and Warbles--Birding by Ear, Pleasant Valley - 6/15/13 |
| From Songbirds to Shorebirds, Wellfleet Bay - 6/15/13 |
| In Search of Returning Osprey, Wellfleet Bay - 6/15/13 |
| Machias Seal Island and Eastern Maine, Joppa Flats - 6/15/13 |
| Picnic on Perkins Island, Ipswich River - 6/15/13 |
| Saturday Morning Birding, Joppa Flats - 6/15/13 |
| Spring Birding Exploration at the Rookery, Broadmoor - 6/15/13 |
| The Wonder and the Wow: Joppa's Mudflats Walk, Joppa Flats - 6/15/13 |
| Ontario and the Bruce Peninsula, Broad Meadow Brook - 6/16/13 |
| Birding by Van, North River - South Shore - 6/17/13 |
| Just Another Manic Monday - Session II, Stony Brook - 6/17/13 |
| Manic Monday Birding Trip with Jack Lash: R.I. Coastal Carousing, Oak Knoll - 6/17/13 |
| Seabirds and Whales, Joppa Flats - 6/17/13 |
| South Beach Birding, Wellfleet Bay - 6/17/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 6/18/13 |
| Author Talk: Elizabeth Gehrman's Rare Birds, Drumlin Farm - 6/19/13 |
| Early Birds, Wellfleet Bay - 6/19/13 |
| Evening Canoe Trip - Twilight, Wellfleet Bay - 6/19/13 |
| Junior Naturalists Program with Jack Lash, Oak Knoll - 6/19/13 |
| Newfoundland Natural History and Birding Tour, Mass Audubon Tours - 6/19/13 |
| North Monomoy Island Exploration, Wellfleet Bay - 6/19/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 6/19/13 |
| State of the Birds: Conservation of Herons and Egrets, Wellfleet Bay - 6/19/13 |
| Wednesday Morning Birding, Joppa Flats - 6/19/13 |
| Family South Beach Adventure, Wellfleet Bay - 6/20/13 |
| Kayak Trip, Wellfleet Bay - 6/20/13 |
| Marine Life Cruise, Wellfleet Bay - 6/20/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 6/20/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 6/20/13 |
| Family South Beach Adventure, Wellfleet Bay - 6/21/13 |
| Friday Morning Bird Walk, North River - South Shore - 6/21/13 |
| Kayak Trip, Wellfleet Bay - 6/21/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 6/21/13 |
| Birds of the Concord River Canoe, Broadmoor - 6/22/13 |
| Chirps, Cheeps, and Warbles--Birding by Ear, Pleasant Valley - 6/22/13 |
| Evening Canoe Trip - Full Moon, Wellfleet Bay - 6/22/13 |
| HIP Morning Birding Walks June, Habitat - 6/22/13 |
| Saturday Morning Birding, Joppa Flats - 6/22/13 |
| Pawtuckaway State Park, Drumlin Farm - 6/23/13 |
| Family South Beach Adventure, Wellfleet Bay - 6/25/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 6/25/13 |
| Early Birds, Wellfleet Bay - 6/26/13 |
| Evening Canoe Trip - Twilight, Wellfleet Bay - 6/26/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 6/26/13 |
| South Beach Birding, Wellfleet Bay - 6/26/13 |
| Wednesday Morning Birding, Joppa Flats - 6/26/13 |
| Early Birders, Felix Neck - 6/27/13 |
| Kayak Trip, Wellfleet Bay - 6/27/13 |
| Marine Life Cruise, Wellfleet Bay - 6/27/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 6/27/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 6/27/13 |
| North Monomoy Island Exploration, Wellfleet Bay - 6/27/13 |
| Cape Ann Capers: The Edge of the Sea, Ipswich River - 6/28/13 |
| Family South Beach Adventure, Wellfleet Bay - 6/28/13 |
| Friday Morning Bird Walk, North River - South Shore - 6/28/13 |
| Kayak Trip, Wellfleet Bay - 6/28/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 6/28/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 6/28/13 |
| Saturday Morning Birding, Joppa Flats - 6/29/13 |
| Urban Birds, Boston Nature Center - 6/29/13 |
| Family South Beach Adventure, Wellfleet Bay - 7/1/13 |
| Tern Island Birding, Wellfleet Bay - 7/1/13 |
| North Monomoy Island Exploration, Wellfleet Bay - 7/2/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 7/2/13 |
| Wellfleet Bay Sunset Cruise: A Natural and Cultural History Excursion, Wellfleet Bay - 7/2/13 |
| Early Birds, Wellfleet Bay - 7/3/13 |
| Evening Canoe Trip - Twilight, Wellfleet Bay - 7/3/13 |
| Kayak Trip, Wellfleet Bay - 7/3/13 |
| Marine Life Cruise, Wellfleet Bay - 7/3/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/3/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/3/13 |
| Early Birders, Felix Neck - 7/4/13 |
| Family South Beach Adventure, Wellfleet Bay - 7/5/13 |
| Free Fun Friday at the BNC, Boston Nature Center - 7/5/13 |
| Friday Morning Bird Walk, North River - South Shore - 7/5/13 |
| Kayak Trip, Wellfleet Bay - 7/5/13 |
| Marine Life Cruise, Wellfleet Bay - 7/5/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/5/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/5/13 |
| South Beach Birding, Wellfleet Bay - 7/5/13 |
| Birding Rhode Island's South Coast, Drumlin Farm - 7/6/13 |
| Heron Rookery Excursion, Ipswich River - 7/6/13 |
| Kayak Scorton Creek In Sandwich, Long Pasture - 7/6/13 |
| Kayak Trip, Wellfleet Bay - 7/6/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/6/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/6/13 |
| Sanctuary Walk, Broad Meadow Brook - 7/6/13 |
| Saturdays at Sengekontacket, Felix Neck - 7/6/13 |
| The Wonder and the Wow: Whale Watch on the Captain's Lady III, Joppa Flats - 7/6/13 |
| Take a Walk on the Wild Side: Family Whale Watch, Joppa Flats - 7/7/13 |
| Family South Beach Adventure, Wellfleet Bay - 7/8/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/8/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/9/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/9/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 7/9/13 |
| Early Birds, Wellfleet Bay - 7/10/13 |
| Evening Canoe Trip - Twilight, Wellfleet Bay - 7/10/13 |
| Junior Bird Club, Allens Pond - 7/10/13 |
| Marine Life Cruise, Wellfleet Bay - 7/10/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/10/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 7/10/13 |
| South Beach Birding, Wellfleet Bay - 7/10/13 |
| Early Birders, Felix Neck - 7/11/13 |
| Kayak Trip, Wellfleet Bay - 7/11/13 |
| Maine: Puffins and Peatlands, North River - South Shore - 7/11/13 |
| Marine Life Cruise, Wellfleet Bay - 7/11/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/11/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/11/13 |
| North Monomoy Island Exploration, Wellfleet Bay - 7/11/13 |
| Puffins and Peatlands, Ipswich River - 7/11/13 |
| Family South Beach Adventure, Wellfleet Bay - 7/12/13 |
| Friday Morning Bird Walk, North River - South Shore - 7/12/13 |
| Kayak Trip, Wellfleet Bay - 7/12/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/12/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 7/12/13 |
| Beach Ramble, Allens Pond - 7/13/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/13/13 |
| Saturdays at Sengekontacket, Felix Neck - 7/13/13 |
| Wildlife Detectives, Boston Nature Center - 7/13/13 |
| Birding by Van, North River - South Shore - 7/15/13 |
| Montana: Potholes, the Rocky Mountain Front, and Glacier National Park, Joppa Flats - 7/15/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 7/15/13 |
| South Beach Birding, Wellfleet Bay - 7/15/13 |
| Family South Beach Adventure, Wellfleet Bay - 7/16/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/16/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/16/13 |
| Early Birds, Wellfleet Bay - 7/17/13 |
| Evening Canoe Trip - Twilight, Wellfleet Bay - 7/17/13 |
| Marine Life Cruise, Wellfleet Bay - 7/17/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/17/13 |
| Tern Island Birding, Wellfleet Bay - 7/17/13 |
| Early Birders, Felix Neck - 7/18/13 |
| Kayak Trip, Wellfleet Bay - 7/18/13 |
| Marine Life Cruise, Wellfleet Bay - 7/18/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/18/13 |
| North Monomoy Island Exploration, Wellfleet Bay - 7/18/13 |
| Cape Ann Capers: Beachcombers, Ipswich River - 7/19/13 |
| Family South Beach Adventure, Wellfleet Bay - 7/19/13 |
| Friday Morning Bird Walk, North River - South Shore - 7/19/13 |
| Kayak Trip, Wellfleet Bay - 7/19/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/19/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/19/13 |
| Paddle to Thacher Island, Ipswich River - 7/19/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 7/19/13 |
| Saturdays at Sengekontacket, Felix Neck - 7/20/13 |
| South Beach Early Shorebird Migration, Drumlin Farm - 7/20/13 |
| Herons at Hemenway, Wellfleet Bay - 7/22/13 |
| Just Another Manic Monday - Session III, Stony Brook - 7/22/13 |
| Manic Monday Birding Trip with Jack Lash: "Full Fledged Foray", Oak Knoll - 7/22/13 |
| Marine Life Cruise, Wellfleet Bay - 7/22/13 |
| Evening Canoe Trip - Full Moon, Wellfleet Bay - 7/23/13 |
| Family South Beach Adventure, Wellfleet Bay - 7/23/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/23/13 |
| Nauset Marsh Scenic Cruise, Wellfleet Bay - 7/23/13 |
| Birding the Powderhole on South Monomoy, Wellfleet Bay - 7/24/13 |
| Birds and Bogs of the Upper Coast of Maine, Arcadia - 7/24/13 |
| Early Birds, Wellfleet Bay - 7/24/13 |
| Nauset Marsh Discovery Cruise, Wellfleet Bay - 7/24/13 |
| Salt Marsh Discovery Walk, Wellfleet Bay - 7/24/13 |
| South Beach Birding, Wellfleet Bay - 7/24/13 |