Tag Archives: Sedge Wren

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 Tanager has been on territory for the last few summers.  In winter Northern Saw-whet, Eastern Screech, Barred and Great Horned Owls can all be found along Ford Road.  Henslow’s and Grasshopper Sparrows nest near the road in the field to the south (note: the Forest Preserve District has done controlled burns in the field recently, 2011-12, that has caused the Henslow’s to move to the near by John Duffy Grasslands).   In most years Henslow’s can be found throughout the grassland.  Farther back in the field (farther south) are breeding Dickcissels and Bobolinks and usually an Eastern meadowlark or two.  In late summer Sedge Wrens often arrive for a second round of nesting from other locations unknown.  In spring watch and listen for displaying American Woodcocks.  On the west edge of the field on the wooded edge south of the houses there has been a Blue-winged Warbler or two for a couple of years.

Farther east along Ford Road is the caretaker’s house (sometime occupied, sometimes not).  A Yellow-throated Vireo has been found in the woods across the road since 2008.  Listen for the/a Summer Tanager here as well.  An Orchard Oriole can usually be found behind the house.  In the past a Blue-winged Warbler has been found by the house.  On 8 June 2008, 9 June 2009 and 14 June 2012 a male Least Flycatcher has been recorded behind or east of this house, but breeding has not yet been confirmed.  Red-headed Woodpeckers breed in the woods just to the northeast of the house in Cap Sauer.  Ospreys breed at Bergman Slough south of the house.  The area immediately around the lake is off limits from 15 April to August.  Do not park at the small parking space east of the caretaker’s house, even if you are in the woods across the street looking for Red-headeds!  The Ospreys can be viewed with a scope from the parking places mentioned at the beginning of this post.


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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 to the area where the Mockingbirds and Shrikes can be found. The blue marker is the row of osage orange trees where the shrikes nest. Note that the closest access is the trail (the trees where the shrikes nest is off limits, and fenced), and a scope is helpful. Sometimes the birds can be seen at close range on the barbed wire fence. Northern Mockingbird is usually easily seen along this trail also.


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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 Gallinule, Least Bittern, American Bittern, Swamp Sparrow, Marsh Wren and other expected marsh species, such as Sora and Virginia Rail. King Rails were calling here in May/June of 2011. Bald Eagle is frequently seen here. In the woods to the south, Red-headed Woodpecker and Carolina Wren are resident. In March and April, thousands of waterfowl congregate here, and White-fronted Goose and Cackling Goose are usually present.

The tower 
The tower offers an elevated overview of the marshes, and many of the same birds. Looking north, one can often spot Northern Harrier, and Sedge Wren nests in the prairie around the tower.

Urnikis Rd.
Another access point, and usually the best for Yellow-headed Blackbird. If the water is low, the gravel trail can be walked for quite a distance through the marsh and out into the prairie to the west. Henslow’s and Grasshopper Sparrows breed here, but the trail is most often under more than 2 feet of water. To access this spot turn west off Rte. 26 at Urnikis Rd. (780E). This is about 1/2 mile north of the main entrance road (795E). Note that there is only room to pull in one or two cars and that the open area that looks like a small parking lot, on the left as you pull in, is private property.

The marshes at Hennepin-Hopper have produced a lot of rare birds including Black-bellied Whistling Duck, Great-tailed Grackle, Ross’ Goose, White-faced Ibis, Black-necked Stilt and Hudsonian Godwit.


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