Wetland birding habitat

Hawkeye Wildlife Management Area - Greencastle Avenue causeway

Iowa · Midwest

Habitat
Wetland
Best Seasons
Difficulty

Moderate

Best Months

April-May, September-October

About This Location

Hawkeye Wildlife Management Area - Greencastle Avenue causeway is a productive birding destination in Iowa, with 223 species recorded on eBird. This wetland habitat attracts Greater White-fronted Goose, Canada Goose, and Trumpeter Swan among many others. Spring migration along the Mississippi and Central Flyways makes this a vital stopover for diverse species.

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

Black-necked Stilt

Himantopus mexicanus

4/19/2026Amana--Lily Pond2 observed

Northern Waterthrush

Parkesia noveboracensis

4/19/2026Hawkeye WMA--Greencastle Ave. causeway1 observed

Caspian Tern

Hydroprogne caspia

4/19/2026Hawkeye WMA--Amana Rd.4 observed

Black-bellied Whistling-Duck

Dendrocygna autumnalis

4/17/2026Hawkeye WMA--Gunclub Ponds6 observed

Henslow's Sparrow

Centronyx henslowii

4/17/20262758–2864 James Ave NW, Tiffin US-IA 41.73028, -91.661472 observed

Spotted Sandpiper

Actitis macularius

4/15/2026Terry Trueblood RA1 observed

Pine Warbler

Setophaga pinus

4/15/2026Macbride Bird Blind1 observed

Black-throated Green Warbler

Setophaga virens

4/15/2026Court St. House1 observed

Recent Observations

Species reported at this location in the last 14 days

Snow Goose

64/19/2026

Canada Goose

44/19/2026

Wood Duck

24/19/2026

Blue-winged Teal

124/19/2026

Northern Shoveler

84/19/2026

Mallard

44/19/2026

Green-winged Teal

64/19/2026

Mourning Dove

24/19/2026

Double-crested Cormorant

74/19/2026

Great Blue Heron

64/19/2026

American White Pelican

114/19/2026

Barn Swallow

14/19/2026

American Robin

44/19/2026

White-throated Sparrow

24/19/2026

Song Sparrow

44/19/2026

Red-winged Blackbird

54/19/2026

Brown-headed Cowbird

34/19/2026

Common Grackle

14/19/2026

Northern Waterthrush

14/19/2026

Northern Cardinal

24/19/2026

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

    Time your visit during the first week of May for maximum species diversity.

Frequently Asked Questions

When is the best time to visit Hawkeye Wildlife Management Area - Greencastle Avenue causeway for birding?
The best months to visit Hawkeye Wildlife Management Area - Greencastle Avenue causeway for birding are April-May, September-October. The best seasons are Spring and Fall.
What birds can I see at Hawkeye Wildlife Management Area - Greencastle Avenue causeway?
Notable species at Hawkeye Wildlife Management Area - Greencastle Avenue causeway include Greater White-fronted Goose, Canada Goose, Trumpeter Swan, Mallard, Northern Pintail. The area supports wetland habitats.
How difficult is birding at Hawkeye Wildlife Management Area - Greencastle Avenue causeway?
Birding at Hawkeye Wildlife Management Area - Greencastle Avenue causeway is rated as Moderate. Some trails may require moderate fitness and basic hiking ability.
What amenities are available at Hawkeye Wildlife Management Area - Greencastle Avenue causeway?
Hawkeye Wildlife Management Area - Greencastle Avenue causeway offers the following amenities: Parking, Trails.