Nature Notes: A Maine Naturalist Afield is a 5-minute, spoken-word program produced by MNHO staff that discusses natural history topics relating to Maine’s flora and fauna from the perspective of field biologists and naturalists.
Nature Notes is broadcast on WERU Community Radio 89.9 FM on Sundays at 9:30 a.m.
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10/19/25: A Discussion with Elliot Johnston
Elliot, an ecologist at Maine Natural History Observatory, discusses his work on purple sandpipers, island songbirds, and upcoming research on mammals and Black Guillemots. He also reflects on his path into field biology, from backyard bird feeders to graduate school at the University of Maine, and shares his perspective on Maine’s islands as unique self-contained ecosystems with rich opportunities for future research.
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10/12/25: Sailing the Maine Coast, part 7
In this episode, Glen rows and sails along Mount Desert Island’s south shore, recalling his early days learning plants and birds and the beginnings of his field ecology career. He describes the quiet rhythm of rowing and decades of ecological surveys along the Maine coast.
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10/5/25: Sailing the Maine Coast, part 6
Leaving Marshall Island after a rainy night at anchor, Glen sails east toward Mason Ledge, a long-time seabird colony. Along the way, he notes loons now commonly seen on saltwater in summer, lines of Black Guillemots, and flocks of southbound Semipalmated Sandpipers.
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9/28/25: Sailing the Maine Coast, part 5
Anchored in Boxam Cove on Marshall Island, Glen reflects on a rainy night lit by the glow of bioluminescent plankton. Morning brings fog, eagles, schools of fish, and the striking contrast of dark spruce forests against patches of blue sky as Glen shares the beauty and solitude of Maine’s wild offshore islands.
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9/21/25: Sailing the Maine Coast, part 4
As Glen sails past Roberts and Brimstone Islands south of Vinalhaven, he reflects on decades of baseline research in collaboration with Maine Coastal Islands National Wildlife Refuge—mapping vegetation, inventorying plants, and surveying birds to track long-term ecological change. Along the way, he shares the challenges of island fieldwork, a close puffin sighting far from a breeding colony, and the occasional mishap with lobster buoys.
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9/14/25: Sailing the Maine Coast, part 3
Drifting in Penobscot Bay, Glen shares the sounds of a ringing bell buoy, a close encounter with harbor porpoises, and surprising concentrations of moon jellyfish. When the sea breeze arrives, he sails south of Vinalhaven, reveling in a fast and lively run along the Maine coast.
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9/7/25: Sailing the Maine Coast, part 2
This episode takes listeners to a bustling gull and cormorant colony on Garden Island near the Mussel Ridge Channel, where the air is filled with noise, movement, and the pungent scent of seabird guano. Glen describes colony counts using aerial imagery and the ingenious ways cormorants keep cool on hot days, blending science with the sensory details of a summer visit.
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8/31/25: Sailing the Maine Coast, part 1
In this episode, Glen shares observations about terns, cormorants, Black Guillemots, and eider as he sails Maine’s midcoast, from seabird-rich Muscongus Bay to the narrow Muscle Ridge Channel.
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8/24/25: A Hunt for the Winter Wren
This episode follows one naturalist’s decades-long quest to see the elusive Winter Wren, from first hearing its song in the Maine North Woods to the long summer mornings spent waiting for a glimpse in a damp forest swale. Written by Janet Galle, this essay was originally published in The Observer, an online natural history journal from Maine Natural History Observatory.
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8/17/25: Cliff Swallows
This episode tells the story of one biologist’s journey into Cliff Swallow conservation, from rescuing fallen nestlings to developing management techniques that help colonies rebound in the face of habitat loss and invasive species. This essay, written by Mara Silver and read by Pepin Mittelhauser, was originally published in The Observer, an online natural history journal published by Maine Natural History Observatory.
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8/3/25: The Hunt for the Red-breasted Merganser, part 4
After being temporarily stranded across Moosehead Lake’s Northwest Cove, Logan set out to Seboomook Island and the conclusion of his multi-trip effort to document Red-breasted Merganser breeding in Maine.
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7/27/25: The Hunt for the Red-breasted Merganser, part 3
The final opportunity to document breeding Red-breasted Mergansers arrives, but events take an unexpected turn with the shifting of the wind.
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7/20/25: The Hunt for the Red-breasted Merganser, part 2
The search for mergansers continues and leads to lake isles crowded with colony nesting birds on Maine’s largest lake while subsequent efforts are dashed by fickle conditions.
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7/13/25: The Hunt for the Red-breasted Merganser, part 1
A noteworthy observation on Moosehead Lake sparks a determined effort to document one of Maine’s rarest breeding waterfowl.
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7/6/25: Summer Solstice
This episode reflects on the beauty of the summer solstice, celebrating the lush abundance of early summer while acknowledging the quiet turning point toward shorter days and the rhythm of the seasons. This essay, written by Lewis Holmes and read by Pepin Mittelhauser, was originally published in The Observer, an online natural history journal published by Maine Natural History Observatory.
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6/29/25: A Discussion with Megan McOsker, part 5
Glen talks with Megan about the changes that she has seen in the ecology of the Gulf of Maine area.
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6/22/25: A Discussion with Megan McOsker, part 4
Glen talks with Megan about her work studying whales and their ecology.
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6/15/25: A Discussion with Megan McOsker, part 3
Glen talks with Megan about her work as a natural history guide and researcher and becoming a teacher.
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6/8/25: A Discussion with Megan McOsker, part 2
Glen talks with Megan about her interdisciplinary and immersive natural history education at College of the Atlantic.
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6/1/25: A Discussion with Megan McOsker, part 1
Glen talks with Megan about how her childhood in Rhode Island nurtured her love of natural history and the importance of teaching natural history to everyone.
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5/25/25: Shark Alley
Logan Parker explores the evolving presence of sharks in the Gulf of Maine, from childhood memories of touch-tank dogfish to the modern realities of Great White Sharks along Maine’s coast. This episode examines shifting shark populations, seal recovery, and how modern tracking research is reshaping our understanding of these apex predators.
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5/18/25: Wet Woodlands & Four-toed Salamanders
Logan describes the character of the “wet woods” surrounding his home, spring “big nights,” and his elusive four-toed neighbor.
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5/11/25: A Walk with Rich MacDonald, part 4
Glen walks a trail on Mount Desert Island with naturalist Rich MacDonald and they discuss Wood Ducks.
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5/4/25: A Walk with Rich MacDonald, part 3
Glen walks a trail on Mount Desert Island with naturalist Rich MacDonald and they discuss woodpeckers.
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4/27/25: A Walk with Rich MacDonald, part 2
Glen walks a trail on Mount Desert Island with naturalist Rich MacDonald and we talk about how he got started as a naturalist.
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4/20/25: A Walk with Rich MacDonald, part 1
Glen walks a trail on Mount Desert Island with naturalist Rich MacDonald exploring the region’s diverse habitats and
discussing the area’s unique ecology. -
4/13/25: Brown Brook Thaw
This piece is a reflection on the ecological stirrings of early spring, centered on the thaw and renewal of a small brook. As the snowmelt surges through the brook, it awakens a vibrant world of birds, amphibians, and aquatic life, offering a fleeting season of beauty before the forest fully leafs out.
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4/6/25: Cold Beauty of the Marsh, and Pipits
On a frigid January morning, Lewis Holmes explores a frozen Scarborough Marsh, encountering a variety of winter birds whose brief yet vibrant presence contrasts with the solitude and cold, evoking memories of the livelier summer months.
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3/30/25: John on Isle au Haut, part 2
Glen and Logan speak with John on Isle au Haut about the changes in the island’s biota he has observed over the past few decades. This is the second part of their conversation.
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3/23/25: John on Isle au Haut, part 1
Glen and Logan speak with John on Isle au Haut about the changes in the island’s biota he has observed over the past few decades. This is the first part of their conversation.
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3/16/25: Wet Flats in Winter
Learn about the ecoregion known as the Upper Saint John Wet Flats with Logan Parker.
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3/9/25: The Tree Fox
Learn about the elusive Gray Fox with Logan Parker.
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3/2/25: Learning and teaching natural history
This episode is a continuation of an interview with both Jill Weber and Karen Zimmermann who talk about their experience with learning and teaching natural history.
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2/23/25: Learning as a Maine field naturalist
This episode is an interview with Karen Zimmermann who talks about her journey learning field biology in Maine.
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2/16/25: Discussion with a dedicated botanist
This episode is an interview with Jill Weber, a dedicated botanist from Maine whose work focuses on preserving the unique plant ecosystems of Maine.
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2/9/25: Journey into Field Botany
This episode is an interview with Finn O’Connor about their journey into the world of field botany and how it all began.
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2/2/25: American Rowan
Found atop the Western Maine Mountains and along the rugged Downeast coast, the humble mountain-ash is a boon to wildlife, large and small.
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1/26/25: Late Autumn Sulphurs
Late autumn isn’t usually a time associated with butterflies, yet a few hardy species persist despite chill and frost.
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1/19/25: Hollies of Maine
Hollies have long been associated with winter celebrations, both “across the pond” and here at home. Here we introduce Maine’s three native species: winterberry, mountain holly, and inkberry.
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1/12/25: Maine Seabird Crew, part 2
This episode is part 2 of an interview with Tracey Faber, Liv Ridley, and Coco Faber who are field biologists working out on offshore seabird colonies in Maine.
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1/5/25: Maine Seabird Crew, part 1
This episode is part 1 of an interview with Tracey Faber, Liv Ridley, and Coco Faber who are field biologists working out on offshore seabird colonies in Maine.
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12/29/24: Maine Seaweeds, Part 2
This episode is part 2 of an interview with Amanda Savoie and Jordan Chalfant who are field biologists working to build a field guide to the seaweeds of Maine.
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12/22/24: Maine Seaweeds, Part 1
This episode is part 1 of an interview with Amanda Savoie and Jordan Chalfant who are field biologists working to build a field guide to the seaweeds of Maine.
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12/15/24: Jay Mimicry
Is that truly a hawk you hear? Learn the deceptive tactics jays employ to secure their share of the acorn crop.
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12/8/24: Seasonal Shift
The transition from summer to autumn ushers in more than just magnificent foliage. Join Logan on a stroll through a Maine landscape in flux.
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12/1/24: Clock-work
Maine’s cuckoos are among the most secretive birds to breed within our woodlands. Here we explore their fascinating natural history through the lens of field observations.
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11/24/24: Maine Owls
An interview with Juliana Ramirez, who works with Maine owls.
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