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

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

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