Wetland birding habitat

Grand Manan - Castalia Marsh

New Brunswick · Canada

Habitat
Wetland
Best Seasons
Difficulty

Moderate

Best Months

May-October

About This Location

Grand Manan - Castalia Marsh is a productive birding destination in New Brunswick, with 264 species recorded on eBird. This wetland habitat attracts American Black Duck, Common Eider, and Common Goldeneye among many others. Boreal and temperate forests host breeding warblers, sparrows, and waterfowl during the productive summer months.

Location

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Notable Species

Live Bird Data

Powered by eBird / Cornell Lab of Ornithology

Notable Sightings

Rare or unusual species spotted nearby in the last 14 days

Baird's Sandpiper

Calidris bairdii

8/22/2026Grand Manan--NCC Migratory Bird Sanctuary Nature Reserve1 observed

Dovekie

Alle alle

8/22/2026Seal Cove3 observed

Worm-eating Warbler

Helmitheros vermivorum

8/20/2026Dark Harbour, Grand Manan, NB1 observed

American Oystercatcher

Haematopus palliatus

8/20/2026Seawatch Tours, Grand Manan2 observed

Little Gull

Hydrocoloeus minutus

8/15/2026Head Harbor Passage1 observed

Recent Observations

Species reported at this location in the last 14 days

Black-bellied Plover

308/22/2026

Semipalmated Plover

408/22/2026

Lesser Yellowlegs

18/22/2026

Greater Yellowlegs

48/22/2026

White-rumped Sandpiper

28/22/2026

Least Sandpiper

808/22/2026

Ring-billed Gull

18/22/2026

American Herring Gull

4008/22/2026

Great Black-backed Gull

158/22/2026

Great Blue Heron

18/22/2026

Belted Kingfisher

18/22/2026

Merlin

18/22/2026

American Crow

58/22/2026

Common Raven

28/22/2026

Savannah Sparrow

18/22/2026

Common Eider

58/20/2026

Ruby-throated Hummingbird

28/20/2026

Golden-crowned Kinglet

28/20/2026

Cedar Waxwing

28/20/2026

Black-and-white Warbler

18/20/2026

Birding Tips

  1. 1

    Bring waterproof boots for marsh trails and muddy edges.

  2. 2

    Scan the edges of open water for herons, egrets, and rails at dawn.

  3. 3

    Peak breeding season runs from late May through June for most songbirds.

Frequently Asked Questions

When is the best time to visit Grand Manan - Castalia Marsh for birding?
The best months to visit Grand Manan - Castalia Marsh for birding are May-October. The best seasons are Spring and Summer and Fall.
What birds can I see at Grand Manan - Castalia Marsh?
Notable species at Grand Manan - Castalia Marsh include American Black Duck, Common Eider, Common Goldeneye, American Herring Gull, Great Black-backed Gull. The area supports wetland habitats.
How difficult is birding at Grand Manan - Castalia Marsh?
Birding at Grand Manan - Castalia Marsh is rated as Moderate. Some trails may require moderate fitness and basic hiking ability.
What amenities are available at Grand Manan - Castalia Marsh?
Grand Manan - Castalia Marsh offers the following amenities: Parking, Trails.