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

Yellow-breasted Chat

Icteria virens

6/15/2026Terry Trueblood RA1 observed

Black Vulture

Coragyps atratus

6/14/2026903 East College Street, Iowa City, Iowa, US (41.659, -91.523)1 observed

Mute Swan

Cygnus olor

6/12/2026Brown Deer Golf Club, Coralville US-IA 41.70678, -91.573842 observed

Snow Goose

Anser caerulescens

6/11/2026Amana--Lily Pond4 observed

Ross's Goose

Anser rossii

6/7/2026North Ridge Park1 observed

Blackburnian Warbler

Setophaga fusca

6/5/2026Hawkeye WMA--Hanging Rock Woods1 observed

Northern Mockingbird

Mimus polyglottos

6/5/2026Wendell Simonson Memorial Shotgun Range - Amana Road1 observed

Black-and-white Warbler

Mniotilta varia

6/5/2026Greencastle Ave NW, Swisher US-IA 41.80695, -91.714801 observed

Recent Observations

Species reported at this location in the last 14 days

Semipalmated Sandpiper

206/14/2026

Black Tern

126/14/2026

Double-crested Cormorant

36/14/2026

Green Heron

16/14/2026

Great Egret

26/14/2026

Great Blue Heron

46/14/2026

Turkey Vulture

26/14/2026

Osprey

16/14/2026

Eastern Wood-Pewee

16/14/2026

Willow Flycatcher

16/14/2026

Eastern Kingbird

36/14/2026

Eastern Warbling Vireo

16/14/2026

Tufted Titmouse

16/14/2026

American Robin

6/14/2026

Red-winged Blackbird

6/14/2026

Common Yellowthroat

16/14/2026

Northern Yellow Warbler

16/14/2026

Canada Goose

6/13/2026

Ring-necked Pheasant

16/13/2026

Mourning Dove

26/13/2026

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.