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Maine Natural History Observatory
Maine Natural History Observatory
  • Home
  • About
    • History
    • Staff
    • FAQs
  • Projects
  • Tools
    • Mini Guides
    • Whip-poor-will Tracking Maps
    • Nature Notes: A Maine Naturalist Afield (radio program)
    • Seaweed Map
    • Seaweed Database
    • Island Plants Map
    • Maine Biota Project
  • Journal
  • Shop
  • Memberships
  • Events
    • Videos
  • Donate
  • Contact
Shopping cart 0
Maine Natural History Observatory
Maine Natural History Observatory
  • SOLD OUTCOMING SOON: Maine Bird Atlas 2018-2022

    COMING SOON: Maine Bird Atlas 2018-2022

    $95.00
    Read more
  • seaweed identification infographic guide to Acrosiphonia genus vs Cladophora genus

    Free Mini Guide: Acrosiphonia genus vs. Cladophora genus

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  • Seaweed identification infographic to Ahnfeltia plicata vs Polyides rotunda

    Free Mini Guide: Ahnfeltia plicata vs. Polyides rotunda

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  • Seaweed identification infographic to Antithamnion sparsum vs Antithamnionella floccosa

    Free Mini Guide: Antithamnion sparsum vs. Antithamnionella floccosa

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  • plant identification infographic guide to Asteraceae (aster family)

    Free Mini Guide: Asteraceae – Aster Family

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  • tree identification infographic guide to Balsam Fir, White Spruce, and Red Spruce

    Free Mini Guide: Balsam Fir, White Spruce, & Red Spruce

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  • Free Mini Guide: Barn Swallow vs. Cliff Swallow

    Free Mini Guide: Barn Swallow vs. Cliff Swallow

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  • Wildflower identification infographic guide to Iris hookeri vs Iris versicolor

    Free Mini Guide: Beach-head Iris vs. Blue Iris

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  • tree identification infographic guide to Paper Birch, Gray Birch, and Mountain Paper Birch

    Free Mini Guide: Birches

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  • plant identification infographic guide to Black Elderberry (Sambucus nigra) and Red Elderberry (Sambucus racemosa)

    Free Mini Guide: Black Elderberry vs. Red Elderberry

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  • Plant Identification mini guide infographic: Brassicaceae Mustard Family

    Free Mini Guide: Brassicaceae – Mustard Family

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  • seaweed identification infographic guide to terms and morphometrics to common brown seaweeds in maine

    Free Mini Guide: Brown Seaweed Blades Part 1 (Terms and Morphometrics)

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  • seaweed identification infographic guide to the blade features of common brown seaweeds in maine

    Free Mini Guide: Brown Seaweed Blades Part 2 (Blade features)

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  • seaweed identification infographic guide to the stipes and holdfasts of common brown seaweeds in maine

    Free Mini Guide: Brown Seaweed Blades Part 3 (Stipe and Holdfast Features)

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  • seaweed identification infographic guide to common brown seaweeds in Maine

    Free Mini Guide: Brown Seaweed Blades Part 4 (Habitat, Phenology, and Commonality)

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  • Bird identification infographic guide to Cedar Waxwing vs Bohemian Waxwing

    Free Mini Guide: Cedar Waxwing vs. Bohemian Waxwing

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  • seaweed identification infographic guide to Mastocarpus stellatus and Chondrus crispus, Irish Moss

    Free Mini Guide: Chondrus crispus vs. Mastocarpus stellatus

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  • Seaweed identification infographic to Common Green Seaweed Tubes

    Free Mini Guide: Common Green Seaweed Tubes

    Download
  • Bird identification infographic guide to crows and ravens

    Free Mini Guide: Common Raven vs. American Crow

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  • Free Mini Guide: Crab Apples (Malus sieboldii, Malus baccata, & Malus prunifolia)

    Free Mini Guide: Crab Apples (Malus sieboldii, Malus baccata, & Malus prunifolia)

    Download
  • Bird identification infographic guide to Downy Woodpecker vs. Hairy Woodpecker

    Free Mini Guide: Downy Woodpecker vs. Hairy Woodpecker

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  • seaweed identification infographic guide to Dumontia contorta vs Devaleraea ramentacea

    Free Mini Guide: Dumontia contorta vs. Devaleraea ramentacea

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  • seaweed identification infographic for filamentous brown seaweeds and tube-forming diatoms in Maine

    Free Mini Guide: Filamentous Brown Seaweeds vs. Tube-forming Diatoms

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  • seaweed identification infographic guide to Bladder Wrack, Two-headed Wrack, and Spiral Wrack

    Free Mini Guide: Fucus Spiralis, Fucus visiculosus, & Fucus distichus ssp. edentatus

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  • plant identification infographic guide to Goldenrod or Ragweed

    Free Mini Guide: Goldenrod vs. Ragweed

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  • Bird identification infographic guide to Great Cormorant vs. Double-crested Cormorant

    Free Mini Guide: Great Cormorant vs. Double-crested Cormorant

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  • Bird identification infographic guide to House Finch vs Purple Finch

    Free Mini Guide: House Finch vs. Purple Finch

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  • plant identification infographic guide to Jack Pine vs Pitch Pine

    Free Mini Guide: Jack Pine vs. Pitch Pine

    Download
  • Plant identification infographic to Lamiaceae, Mint Family

    Free Mini Guide: Lamiaceae – Mint Family

    Download
  • Wildflower identification infographic guide to native Large Cranberry vs Small Cranberry (Vaccinium)

    Free Mini Guide: Large Cranberry vs. Small Cranberry

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  • seaweed identification infographic guide to Leathesia marina vs Colpomenia peregrina

    Free Mini Guide: Leathesia marina vs. Colpomenia peregrina

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  • Seaweed identification infographic to Leptosiphonia flexicaulis and Melanothamnus harveyi

    Free Mini Guide: Leptosiphonia flexicaulis vs. Melanothamnus harveyi

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  • seaweed identification infographic guide to Membranoptera fabriciana vs Euthora cristata

    Free Mini Guide: Membranoptera fabriciana vs. Euthora cristata

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  • seaweed identification infographic guide to Monostroma grevillei vs Protomonostroma undulatum

    Free Mini Guide: Monostroma grevillei vs. Protomonostroma undulatum

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  • Plant ID infographic for New England aster vs New York aster

    Free Mini Guide: New York Aster vs. New England Aster

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  • plant identification infographic guide to New York Fern vs Hay-scented Fern

    Free Mini Guide: New York Fern vs. Hay-scented Fern

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  • Plant identification infographic guide to One-flowered Indian Piper vs Yellow Pine Sap

    Free Mini Guide: One-flowered Indian-pipe vs. Yellow Pine-sap

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  • Seaweed identification infographic to Palmaria palmata vs Grateloupia turuturu

    Free Mini Guide: Palmaria palmata vs. Grateloupia turuturu

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  • wildflower identification infographic guide to maine orchids: Arethusa bulbosa, Calopogon tuberosus, Pogonia ophioglossoides

    Free Mini Guide: Pink Orchids (Dragon’s Mouth, Tuberous Grass-pink, Rose Pogonia)

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  • seaweed identification infographic guide for Pylaiella spp. and Ectocarpus spp. in Maine

    Free Mini Guide: Pylaiella spp. vs. Ectocarpus spp.

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  • tree identification infographic guide to Quaking Poplar, Big-toothed Poplar, and Balsam Poplar

    Free Mini Guide: Quaking Poplar, Big-toothed Poplar, & Balsam Poplar

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  • identification infographic guide to Gray Fox and Red Fox tracks

    Free Mini Guide: Red Fox vs. Gray Fox

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  • Free Mini Guide: Red Maple vs. Sugar Maple vs. Norway Maple

    Free Mini Guide: Red Maple vs. Sugar Maple vs. Norway Maple

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  • tree identification infographic guide to Red Pine vs White Pine

    Free Mini Guide: Red Pine vs. Eastern White Pine

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  • seaweed identification infographic guide to Rhodomela confervoides vs Dasysiphonia japonica

    Free Mini Guide: Rhodomela confervoides vs. Dasysiphonia japonica

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  • Bird identification infographic guide to Ruffed Grouse and Spruce Grouse

    Free Mini Guide: Ruffed Grouse vs. Spruce Grouse

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  • plant identification infographic guide to Seaside Angelica and Scotch Lovage

    Free Mini Guide: Seaside Angelica vs. Scotch Lovage

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  • plant identification infographic guide to Sheep Laurel (Kalmia angustifolia) and Bog Laurel (Kalmia polifolia)

    Free Mini Guide: Sheep Laurel vs. Bog Laurel

    Download
  • Bird identification infographic guide to American Tree Sparrow vs Chipping Sparrow

    Free Mini Guide: Tree Sparrow vs. Chipping Sparrow

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  • Seaweed identification infographic to Ulva fenestrata vs Ulvaria blyttii

    Free Mini Guide: Ulva fenestrata vs. Ulvaria blyttii

    Download
  • seaweed identification infographic guide to Vertebrata nigra vs Polysiphonia stricta

    Free Mini Guide: Vertebrata nigra vs. Polysiphonia stricta

    Download
  • Free Mini Guide: Western Honey Bee vs. Common Drone Fly vs. Bee Fly

    Free Mini Guide: Western Honey Bee vs. Common Drone Fly vs. Bee Fly

    Download
  • Wildflower identification infographic guide to White Clover (Trifolium repens) vs Alsike Clover (Trifolium hybridum)

    Free Mini Guide: White Clover vs. Alsike Clover

    Download
  • wildflower identification infographic guide to white violets, viola blanda vs viola pallens

    Free Mini Guide: White Violets

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  • SOLD OUTIsle au Haut Winter Seabird Research Expedition: Saturday, March 7th, 2026

    Isle au Haut Winter Seabird Research Expedition

    $75.00
    Read more
  • Sedges of Maine: a Field Guide to Cyperaceae by Matt Arsenault, Glen H. Mittelhauser, Don Cameron, Alison C. Dibble, Arthur Haines, Sally C. Rooney, and Jill E. Weber

    Sedges of Maine: A Field Guide to Cyperaceae

    $32.00
    Add to cart
  • Grasses and Rushes of Maine. A field guide by Glen H. Mittelhauser, Matt Arsenault, Don Cameron, and Eric Doucette

    Field Guide to Grasses and Rushes of Maine

    $32.00
    Add to cart
  • Wildflowers of Maine Islands: The Downeast and Acadia Coasts. a Field Guide by Glen H. Mittelhauser

    Wildflowers of Maine Islands: The Downeast and Acadia Coasts

    $28.00
    Add to cart
  • The Plants Of Acadia National Park

    The Plants Of Acadia National Park

    $28.00
    Add to cart
  • The Plants of Baxter State Park by Glen H. Mittelhauser, Jensen Bissell, Don Cameron, Alison C. Dibble, Arthur Haines, Jean Hoekwater, Marilee Lovit, and Aaron Megquier

    The Plants of Baxter State Park

    $28.00
    Add to cart
  • Common and Sometimes Overlooked Seaweeds of Eastern Maine - a mini guide (Free Download)

    Common and Sometimes Overlooked Seaweeds of Eastern Maine – a mini guide (Free Download)

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  • A Natural History of Camden and Rockport

    A Natural History of Camden and Rockport

    $20.00
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  • A Natural History of Camden and Rockport (Free Download)

    A Natural History of Camden and Rockport (Free Download)

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  • Catalog of the Beetles (Coleoptera) of Mount Desert Island, Maine by Glen Mittelhauser, Maggie Barr, Anne Swann, Don Chandler

    Catalog of the Beetles (Coleoptera) of Mount Desert Island, Maine

    $20.00
    Add to cart
  • Catalog of the Butterflies and Moths (Lepidoptera) of Mount Desert Island, Maine By Glen Mittelhauser, Maggie Barr, and Anne Swann

    Catalog of the Butterflies and Moths (Lepidoptera) of Mount Desert Island, Maine

    $20.00
    Add to cart
  • Catalog of the Sawflies, Wasps, Bees, and Ants (Hymenoptera) of Mount Desert Island, Maine by Glen Mittelhauser, Maggie Barr, and Anne Swann

    Catalog of the Sawflies, Wasps, Bees, and Ants (Hymenoptera) of Mount Desert Island, Maine

    $20.00
    Add to cart
  • Maine Atlas of Breeding Seabird and Coastal Wading Bird Colonies 1960-2011

    Maine Atlas of Breeding Seabird and Coastal Wading Bird Colonies 1960-2011

    $24.95
    Add to cart
  • Harlequin Duck Note Card, color

    Harlequin Duck Note Card, color

    $12.50
    Add to cart
  • Harlequin Duck Note Card, black & white

    Harlequin Duck Note Card, black & white

    $12.50
    Add to cart
  • Owls of Maine art print

    Owls of Maine art print

    $20.00
    Add to cart

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Species Catalogs
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Maine Natural History Observatory

317 Guzzle Road
Gouldsboro, ME 04607
info@mainenaturalhistory.org
(207) 963-2012

Maine Natural History Observatory is a 501(c)(3) nonprofit organization registered in the USA, registration number 20-0718450. Donations are tax-deductible as allowed by law.

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