Cook County - Cook County Forest Preserves

John Duffy Grassland

John Duffy Grassland is the part of the John Duffy Forest Preserve south of 131st Street and bordered by Will-Cook Road on the east, Bell Road on the west and private property on the south. The Red (bridal) trail (download trail map) passes north-south through the middle of the preserve, then heads east along the

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Knox County

Green Oaks Field Station

The premier location for breeding landbirds in Knox County, and an excellent birding location in general, is the Green Oaks Field Station. The Field Station is owned and managed by Knox College as an area for research, conservation, education and recreation, and is generally open only to members of the Knox community (students, alumni, staff

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Cook County - Cook County Forest Preserves

Ford Road/Bergman Slough/Bergman Slough Field

Ford Road is north of McCarthy Road between Will-Cook and Wolf Roads. There are pull-over parking spaces on the south side of Ford Road. To the south is Bergman Slough Field and to the north is Cap Sauer Forest Preserve. Near the east most parking space where the road starts to curve south a Summer

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Lake County

Rollins Savanna

The marshy sloughs can be accessed from either the Washington St. parking area on the south, or the Drury Lane parking lot on the west (shorter walk from Drury Ln.) Birds breeding here include Yellow-headed Blackbird, American and Least Bittern, Sandhill Crane, Henslow’s, Savannah and Grasshopper Sparrows, Bobolink and other expected prairie species. In the

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Lake County

Middlefork Savanna

The marshy slough to the west of the visitor’s parking lot is the most reliable place to find King Rail in northern Illinois. Other breeding birds found here include Boblink, Henslow’s and Grasshopper Sparrows.

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Will County

Midewin Tallgrass Prairie: Iron Bridge access

While there are many grassland species that can be found breeding here, including Henslow’s Sparrow, Grasshopper Sparrow, Bobolink, Dickcissel, Sedge Wren and so on, the main attraction is Northern Mockingbird and Loggerhead Shrike.

In the map below, the main parking lot is shown at the end of Schweitzer Rd. The green line marks the trail

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Putnam County

Hennepin & Hopper Lakes

Hennepin-Hopper, as it’s known, is one of Illinois premier birding locations. This restored wetland has some of the best quality cattail marshes in northern Illinois.

There are 3 primary birding spots here:

The boat launch The boat launch area offers a good vantage point to scope the marsh. Breeding birds here include Yellow-headed Blackbird, Common

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Carroll County - Jo Daviess County

Lost Mound unit: Upper Mississippi NWR

This is a large (very large) area, most of which is off-limits. But the area that is accessible has extensive grassland, scrub and sand-prairie habitat. The habitat is criss-crossed by roads in various state of repair, and birding is primarily done from the car.

The map below gives some suggestions, but many of the target

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Carroll County

Mississippi Palisades State Park

Mississippi Palisades is well known for its concentration of breeding forest birds, especially warblers. At other seasons, almost anywhere in or around the park can be great birding, this entry is concerned with the breeding species that can be found primarily May–August.

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