IBA Site Information

Bjorkboda Marsh/Masterson WA/Boone East Marsh
State IBA
Hamilton County   (and Boone)
Directions:  From Stanhope, travel south on HWY 17 for 4 miles and turn west onthe gravel road marked by a sign. Proceed west for 1 mile, then 1 mile south to an intersection. From there go 0.1 mile west to the signed Bjorkboda parking lot on the north side of the road. Masterson Wildlife Area is just 3/4 mile further west on this gravel road on the north side. Boone East Marsh is adjacent to Masterson on the west and is divided by the east-west road.
Description:  This grassland/marsh complex is about 500 acres and is mostly in private ownership. The unique kettle/kame habitat still contains native prairie remnants and home to about 85 bird species during the nesting season. Northern harriers routinely nest here, as do bobolinks, grasshopper sparrows, and loggerhead shrikes. Bell's vireos, least and American bitterns, Forster's and black terns have all been found here in early spring. In dry springs, it is not unusual to find several hundred shorebirds concentrated here.
Criteria for this site
Endangered or threatened species habitat
High conservation priority
Significant species concentrations
Habitats found in this site
Wetland
Grassland
Ownership
Private
County
Iowa Audubon

Birds of Iowa

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

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