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Habitat and Abundance of CNA Breeding Birds in 2000, 2001 and 2002

Compiled by Roma Lenehan (rlenehan@chorus.net or 3317 Lake Mendota Dr., Madison, WI 53705)  (PDF format)

Habitat of rare breeding birds: one to two pairs

  Nest Status Other status No pairs Habitat
 Mute Swan Confirmed (2) Possible 00 1 marsh
 Ruddy Duck Probable (2) Not present 01 1 marsh
 Red-tailed Hawk Confirmed (3)   1 mature trees
 Broad-winged Hawk Probable (2) Unlikely 01 1 mature forest
 Sandhill Crane Probable (2) Not present 00 1 marsh
 Prothonotary Warbler Probable 02 Unlikely 00, Not present 01 1 holes in trees
 Ovenbird Probable (2) Unlikely 00 1 forest floor
 Pine Siskin Confirmed Probable 01, Unlikely 02 1 evergreens
 Rose-breasted Grosbeak Probable 02 Possible 00, Unlikely 01 1 forest
 Field Sparrow Confirmed Probable 01, Possible 02 1 brushy fields
 Chimney Swift Confirmed (3)   1+ man-made structure
 Pied-billed Grebe Confirmed Possible 01, Unlikely 02 1 to 2 marsh
 Purple Martin Confirmed Possible 01, Not present 02 1 to 2 house in garden
 Yellow-throated Vireo Confirmed Probable 01, Possible 00 1 to 2 mature forest (oak)
 Chestnut-sided Warbler Confirmed Probable 01, Unlikely 00 1 to 2 brush, second growth forest
 Green Heron Confirmed (2) Probable 02 2 trees by marsh
 Great Horned Owl Confirmed (3)   2 evergreens, near edge
 Belted Kingfisher Confirmed (2) Probable 01 2 lake banks
 Red-headed Woodpecker Confirmed Probable 00, 02 2 holes in trees
 

Habitat of uncommon breeding birds: two to five pairs

  Nest Status Other status No pairs Habitat
 Bank Swallow Probable 01, 02 Not present 00 1 to 3 holes in lake banks or gravel piles
 Eastern Screech Owl Confirmed Probable 01, Possible 02 1 to 4 holes in trees
 Blue-winged Teal Confirmed (3)   2 to 3 marsh
 Spotted Sandpiper Confirmed Probable 02, Possible 00 2 to 3 marsh, lake edge
 Wood Thrush Confirmed Probable 01, Not present 00 3 forest
 Savannah Sparrow Probable Possible 00, 02 3+ fields
 Swamp Sparrow Confirmed (2) Probable 01 3+ marsh
 Virginia Rail Confirmed (2) Probable 01 3 to 4 marsh
 Cooper's Hawk Confirmed (3)   3 to 4 evergreens, requires forest
 American Coot Probable (2) Not present 01 4 marsh
 Killdeer Confirmed (3)   4 ground, dirt, gravel
 Yellow-billed Cuckoo Probable 02 Not present 00, 01 4 forest
 Eastern Bluebird Confirmed (2) Probable 01 4 house in gardens
 Ruby-throated Hummingbird Confirmed Probable 00, 02 4+ forest (edge)
 Least Flycatcher Probable (2) Possible 00 4 to 5 forest (open, edge)
 

Habitat of fairly common breeding birds: five to ten pairs

  Nest Status Other status No pairs Habitat
 Canada Goose Confirmed (3)   5+ marsh edge, ground
 Brown Thrasher Confirmed (3)   6 brush near edges
 Wood duck Confirmed (3)   8+ holes in trees
 Scarlet Tanager Probable 02 Possible 00, 01 8 to 10 mature forest (oak)
 Eastern Phoebe Confirmed (3)   9 artificial structures
 European Starling Confirmed (3)   9 holes in trees, houses
 Tufted Titmouse Confirmed (3)   10 holes in trees
 Blue-gray Gnatcatcher Confirmed (3)   10 forest
 

Habitat of common breeding birds: ten to twenty pairs

  Nest Status Other status No pairs Habitat
 American Redstart Confirmed (2) Probable 00 12 forest, near water
 Hairy Woodpecker Confirmed (3)   12 holes in trees
 Sora Rail Confirmed (2) Probable 01 13 marsh
 Yellow Warbler Confirmed (3)   13 trees next to marsh or lake
 Eastern Kingbird Confirmed (3)   13 mature trees, often edge of water
 N Rough-winged Swallow Confirmed (3)   13+ lake banks
 Willow Flycatcher Confirmed (3)   14 dense willow thickets by marsh
 Northern Flicker Confirmed (3)   14 holes in trees
 House Sparrow Confirmed (3)   15 house in gardens, holes in  trees
 Chipping Sparrow Confirmed (3)   16 evergreens, edge
 Brown-headed Cowbird Confirmed (2) Probable 01 18 generalist
 White-breasted  Nuthatch Confirmed (2) Probable 01 18 holes in trees
 Mourning Dove Confirmed (2) Probable 00 18 evergreens, also edges
 Barn Swallow Confirmed (3)   18+ manmade structures
 Common Yellowthroat Confirmed Probable 00, 01 19 marsh edge or fields
 Marsh Wren Confirmed (2) Probable 01 20 marsh
  

Habitat of very common breeding birds: more than twenty pairs

  Nest Status Other status No pairs Habitat
 Common Grackle Confirmed (3)   21+ generalist
 Warbling Vireo Confirmed (3)   22 mature trees, edge of water
 Indigo Bunting Confirmed (3)   25 brush, forest edge
 House Finch Confirmed (3)   26 generalist
 Mallard Confirmed (3)   19 to 36 marsh or lake edge, fields
 Red-bellied Woodpecker Confirmed (3)   28 holes in trees
 Great Crested Flycatcher Confirmed (3)   26 holes in trees
 Tree Swallow Confirmed (3)   30 holes in trees, houses
 American Crow Confirmed (3)   30+ generalist
 Downy Woodpecker Confirmed (3)   32 holes in trees
 Eastern Wood Pewee Confirmed (3)   34 mature trees, forest (oak)
 American Robin Confirmed (3)   36 generalist
 American Goldfinch Confirmed (3)   36+ old fields (thistle)
 House Wren Confirmed (3)   39 holes in trees, houses
 Cedar Waxwing Confirmed (3)   44+ trees near water
 Blue Jay Confirmed (3)   46 generalist
 Red-eyed Vireo Confirmed (3)   54 mature trees, forest
 Black-capped Chickadee Confirmed (3)   56 holes in trees, houses
 Baltimore Oriole Confirmed (3)   56 mature trees, usually edges
 Gray Catbird Confirmed (3)   68 brush, edges
 Song Sparrow Confirmed (3)   73 marsh, marsh edge, fields
 Northern Cardinal Confirmed (3)   86 generalist
 Red-winged Blackbird Confirmed (3)   132 marsh, marsh edge, fields
 

Habitat of possible breeding birds: one to two pairs

  Nest Status Other status No pairs Habitat
 Common Moorhen Possible Not present 01, 02 1 marsh
 Barred Owl Possible Not present 00, 01 1 forest, usually holes in trees
 Cerulean Warbler Possible Not present 00, 02 1 mature forest, often near water
 Black-and-White Warbler Possible Not present 01, 02 1 forest
 Woodcock Possible (2) Not present 00 1 to 2 forest

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