IBA Site Information

South Twin Lake
State IBA
Calhoun County  
Directions:  Three miles west of Manson on Hwy 7, then south on 124, this road runs along the east shore of North Twin Lake. South Twin Lake is southwest of the north lake and accessed by gravel roads.
Description:  South Twin Lake is shallow and marshy and is a waterfowl refuge. It certainly holds concentrations of waterfowl in migration and probably terns and wading birds as well. I am not as familiar with these areas having only stopped there a couple of times, but I would suspect there could also be wetland species of high conservation priority nesting there. This 1269 acre area is mostly lakes surrounded by what used to be oak savanna. Priority species found during BBA project include common moorhen, forster's and black terns, black-billed cuckoo, grasshopper sparow, and bobolink. Not sure if this area qualifies for "significant species concentrations" category, but there were several thousand gulls and terns using this area when I drove by it this fall, as well as several hundred waterfowl.
Criteria for this site
High conservation priority
Rare or unique habitat
Significant species concentrations
Habitats found in this site
Wetland
Ownership
Private
State
Iowa Audubon

Birds of Iowa

  • Northern House Wren
    © Doug Harr
  • Red-eyed Vireo
    © Doug Harr
  • Ring-necked Pheasant
    © Doug Harr
  • Eastern Towhee
    © Doug Harr
  • Mississippi Kite
    © Doug Harr
  • Lesser Yellowlegs
    © Doug Harr
  • Turkey Vulture
    © Doug Harr
  • Eastern Wood-Pewee
    © Doug Harr
  • Rose-breasted Grosbeak
    © Doug Harr
  • Ring-billed Gull
    © Doug Harr
  • Scarlet Tanager
    © Doug Harr
  • American Redstart
    © Doug Harr
  • Ruby-throated Hummingbird
    © Doug Harr
  • Trumpeter Swan
    © Doug Harr
  • Winter Wren
    © Doug Harr
  • Prairie Warbler
    © Doug Harr
  • Ruby-crowned Kinglet
    © Doug Harr
  • Eastern Bluebird
    © Doug Harr
  • Yellow-billed Cuckoo
    © Doug Harr
  • Barred Owl
    © Doug Harr
  • Mourning Dove
    © Doug Harr
  • White-breasted Nuthatch
    © Doug Harr
  • Gray Partridge
    © Doug Harr
  • Cedar Waxwing
    © Doug Harr
  • Great Blue Heron
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  • Least Sandpiper
    © Doug Harr
  • Lesser Scaup
    © Doug Harr
  • Indigo Bunting
    © Doug Harr
  • Pied-billed Grebe
    © Doug Harr
  • Yellow-breasted Chat
    © Doug Harr
  • Dickcissel
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  • Hermit Thrush
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  • Common Nighthawk
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  • Song Sparrow
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  • Downy Woodpecker
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  • Western Meadowlark
    © Doug Harr
  • Common Yellowthroat
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  • Common Gallinule
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  • American Goldfinch
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  • Sora
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  • Northern Pintail
    © Doug Harr
  • Yellow Warbler
    © Doug Harr
  • Pine Siskin
    © Doug Harr
  • Yellow-headed Blackbird
    © Doug Harr
  • Broad-winged Hawk
    © Doug Harr
  • Pine Warbler
    © Doug Harr
  • Blue-gray Gnatcatcher
    © Doug Harr
  • Belted Kingfisher
    © Doug Harr
  • Tree Swallow
    © Doug Harr
  • Eastern Kingbird
    © Doug Harr
  • Tufted Titmouse
    © Doug Harr
  • Northern Shoveler
    © Doug Harr
  • Fox Sparrow
    © Doug Harr
  • Blue-winged Teal
    © Doug Harr
  • American Bittern
    © Doug Harr
  • Merlin
    © Doug Harr
  • American White Pelican
    © Doug Harr
  • Lark Sparrow
    © Doug Harr
  • Black-billed Magpie
    © Doug Harr
  • Blue Jay
    © Doug Harr
  • Northern Cardinal
    © Doug Harr
  • Red-bellied Woodpecker
    © Doug Harr
  • House Finch
    © Doug Harr

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