Wetland birding habitat

Assiscong Marsh

New Jersey · Northeast

Habitat
Wetland
Best Seasons
Difficulty

Moderate

Best Months

April-May, September-October

About This Location

Assiscong Marsh is a productive birding destination in New Jersey, with 217 species recorded on eBird. This wetland habitat attracts Canada Goose, Mourning Dove, and Red-bellied Woodpecker among many others. Spring and fall migration bring waves of warblers and shorebirds through the area.

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

Peregrine Falcon

Falco peregrinus

7/19/2026Maple Knoll Farms (restricted access)1 observed

Red-shouldered Hawk

Buteo lineatus

7/19/2026Home1 observed

Blue Grosbeak

Passerina caerulea

7/18/2026Maple Knoll Farms (restricted access)1 observed

Northern Harrier

Circus hudsonius

7/18/2026600 Somerset Corporate Blvd, Bridgewater US-NJ 40.58816, -74.623521 observed

Alder Flycatcher

Empidonax alnorum

7/16/2026Rockafellows Mill Rd (Private)1 observed

Common Loon

Gavia immer

7/15/2026Lagoon1 observed

Grasshopper Sparrow

Ammodramus savannarum

7/15/2026Milk Farm Market2 observed

Least Bittern

Botaurus exilis

7/15/2026Rosedale Park, Pennington US-NJ 40.32547, -74.760621 observed

Caspian Tern

Hydroprogne caspia

7/14/2026Spruce Run Recreation Area1 observed

Red Crossbill

Loxia curvirostra

7/13/2026Manville1 observed

Red-headed Woodpecker

Melanerpes erythrocephalus

7/13/2026Sunnyside Park2 observed

Dickcissel

Spiza americana

7/12/2026St. Michael's Farm Preserve1 observed

Recent Observations

Species reported at this location in the last 14 days

Mourning Dove

17/17/2026

Killdeer

127/17/2026

Spotted Sandpiper

17/17/2026

Least Sandpiper

27/17/2026

Green Heron

17/17/2026

Blue Jay

17/17/2026

Gray Catbird

17/17/2026

Brown Thrasher

17/17/2026

Northern Mockingbird

17/17/2026

Wood Thrush

17/17/2026

American Robin

37/17/2026

American Goldfinch

27/17/2026

Song Sparrow

27/17/2026

Red-winged Blackbird

57/17/2026

Common Yellowthroat

27/17/2026

Turkey Vulture

27/16/2026

Red-tailed Hawk

17/16/2026

Downy Woodpecker

17/16/2026

Willow Flycatcher

27/16/2026

Great Crested Flycatcher

17/16/2026

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

    Visit during mid-May for peak warbler migration.

Frequently Asked Questions

When is the best time to visit Assiscong Marsh for birding?
The best months to visit Assiscong Marsh for birding are April-May, September-October. The best seasons are Spring and Fall.
What birds can I see at Assiscong Marsh?
Notable species at Assiscong Marsh include Canada Goose, Mourning Dove, Red-bellied Woodpecker, Downy Woodpecker, Northern Flicker. The area supports wetland habitats.
How difficult is birding at Assiscong Marsh?
Birding at Assiscong Marsh is rated as Moderate. Some trails may require moderate fitness and basic hiking ability.
What amenities are available at Assiscong Marsh?
Assiscong Marsh offers the following amenities: Parking, Trails.