Tag Archives: Henslow’s Sparrow

Cook County, Cook County Forest Preserves

John Duffy Grassland

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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 south edge.  There is a pull-over parking spot on each side of 131st St. where the trail crosses the road but do not block the trail.  There is also a small pull-over parking spot on Will-Cook Rd. on the east side across the entrance to Tampier Lake FP.  On 131st St. to the west of the trail crossing is a parking lot for the bridal trail.  The Forest Preserve District is often slow about opening up the parking lot in the morning.  The preserve consists of larger patches of prairie with several small patches of woodland.

Birds: Look and listen for Dickcissels, Eastern Meadowlark and Eastern Bluebirds in the field south of the parking lot.  A few years ago Henslow’s Sparrows also nested here but disappeared.  However, with the controlled burns at Bergman Slough Field they may return as they have to other places in this preserve.  A mowed trail leads from the parking lot to the Red Trail to the east.  Northeast of the intersection with the Red Trail is a small pond with dead trees.  A number of species nest or visit here.  Nesters include Baltimore and Orchard Orioles, Warbling Vireo, Wood Duck and occasionally Red-headed Woodpecker.  In the field stretching east are often Bobolink, Eastern Meadowlark, Dickcissel and Savannah Sparrow.  Great Crested Flycatcher, Red-eyed Vireo and Eastern Towhee can be found in the woodlots here and throughout the preserve.  At the gap in the hedge to the east you can find nesting Brown Thrasher, Indigo Bunting, Gray Catbird (all found throughout the preserve, as well) and, sometimes, Eastern Bluebird.  The grasslands on the eastern half of the preserve are the best for Henslow’s, Grasshopper and Savannah Sparrows and Bobolink.  On rare occasions there has been a Black-billed Cuckoo in the woodlot to the north.  Red-tailed Hawks nest somewhere in this area.  The woods on the south side hold Red-bellied and Hairy Woodpeckers.  In 2012 there was a Ruby-throated Hummingbird at the southern gap in the hedge.  Follow the Red Trail west to where it curves back north.  Along the south end of the north-south leg of the trail there is usually a White-eyed Vireo; in 2012 there were 2 on territory here.  There is usually a Blue-winged Warbler along here, as well.  Cooper’s Hawks have nested in the woodlot on the east side of the trail. 26 June 2010 there was a Prairie Warbler heard singing distantly from the gap between woodlots on the east side of the trail; this was likely a post breeding dispersal but it may be a species to listen for in the next decade.


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Knox County

Green Oaks Field Station

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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 and faculty) and their accompanied guests.  Birders who would like to visit the site can contact Jim Mountjoy (jmountjoy@knox.edu) who would be happy to escort interested parties to Green Oaks, time permitting.

Green Oaks is over 700 acres in extent, most of which is forested (some of it mature growth with many centuries-old Eastern White Oaks).  There are also restored prairies, a strip mine lake, and several smaller ponds.  The entrance to the site is a gate on the east side of County Road 1800E, about 4.5 miles south of the town of Victoria.

The best areas for breeding birds are usually the mature forests and deep ravines, which are accessed by several trails.  The South Creek Trail and Locust Trail connect to form a loop of approximately two miles.  Along this route Acadian Flycatchers, Ovenbirds and Kentucky Warblers are usually easily found in season.  Pileated Woodpeckers and Red-shouldered Hawks are also regular, if somewhat less reliable.  Louisiana Waterthrushes and Northern Parulas are regular breeders, in small numbers.  Worm-eating and Cerulean Warblers have also bred here, although they may not be present every year.

The Little John Nature Trail is another area that may produce Louisiana Waterthrushes or Red-shouldered Hawks.  The edges of woodland and roadsides may be concentrate migrant songbirds in season.  The restored prairies have supported breeding Henslow’s Sparrows in some seasons.  Rarities observed at Green Oaks include Golden Eagle, Yellow Rail, Barn Owl and Bewick’s Wren.

Several other good birding areas are located in the area, including Snake Den Road to the south, the Oak Run/Spoon Lake area to the west, and the open country and strip mine lakes of the countryside north of Victoria.


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Cook County, Cook County Forest Preserves

Ford Road/Bergman Slough/Bergman Slough Field

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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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Lake County

Rollins Savanna

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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 fall, the wet areas around the slough edges can be excellent for sparrows, especially Nelson’s and Le Conte’s. Short-eared Owls can be seen here in most years from October to December and sometimes through the winter. American Kestrel and Northern Harrier are regulars during winter and during spring and fall, the ponds at Rollins are loaded with all manner of dabbling ducks. It’s the best spot in the area for Northern Pintail. In winter it is not unusual to get Lapland longspur, Horned Lark, and Snow Bunting here as well.


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Will County

Midewin Tallgrass Prairie: Iron Bridge access

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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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Putnam County

Hennepin & Hopper Lakes

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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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Carroll County, Jo Daviess County

Lost Mound unit: Upper Mississippi NWR

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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 species can be found almost anywhere. Blue Grosbeak and Lark Sparrow are easily found in May and June, as is Northern Mockingbird.

Breeding species found here include Blue Grosbeak, Henslow’s Sparrow, Lark Sparrow, Grasshopper Sparrow, Savannah Sparrow, Western Meadowlark, Whip-poor-will, Pileated Woodpecker, Northern Mockingbird. Other species that have been found here include Summer Tanager, Carolina Wren and, where the entrance road crosses a creek just before entering the property, Prothonotary Warbler.


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For county listers, the Jo Daviess/Carroll county line is in yellow.

Carroll County

Mississippi Palisades State Park

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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. Continue reading Mississippi Palisades State Park →