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Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie Annual Report: 1999

Table 2


Table 2.  Mean bird density/100 ha (± standard error) in small and large plots in neutral and hostile landscapes by region. Bird species are ordered by systematics.
Species Crookston Glyndon Sheyenne
Small Large Small Large Small Large
Neutral N=4 Hostile N=4 Neutral N=5 Hostile N=3 Neutral N=6 Hostile N=3 Neutral N=5 Hostile N=4 Hostile N=4 Neutral N=4 Hostile N=3
Sandhill Crane 0 2.9 ± 2.9 0 0 0 0 0 0 0 0 0
Mallard 0 0 0 0 2.0 ± 2.0 0 1.2 ± 1.2 1.6 ± 1.6 0 5.0 ± 3.6 10.7 ± 7.4
Blue-winged Teal 0 0 0 0 0 0 0 0 0 2.5 ± 1.5 0
Northern Shoveler 0 0 0 0 0 0 0 0 0 2.5 ± 1.5 0
Northern Pintail 0 0 0 0 0 0 0 0 0 0 2.1 ± 2.1
Yellow Rail 0 0 1.6 ± 1.6 0 0 0 0 0 0 0 0
Virginia Rail 0 0 0 0 2.4 ± 2.4 0 0 0 0 0 0
Sora 0 0 0 0 4.8 ± 4.8 0 0 0 0 3.8 ± 2.5 2.4 ± 2.4
Marbled Godwit 0 0 1.6 ± 1.6 0 0 7.4 ± 7.4 3.1 ± 3.1 0 0 3.1 ± 3.1 0
Wilson's Phalarope 0 0 0 0 0 0 0 0 0 13.1 ± 13.1 8.0 ± 5.2
Killdeer 0 0 0 0 0 0 0 0 0 3.8 ± 2.5 2.4 ± 2.4
Common Snipe 0 0 1.6 ± 1.6 2.8 ± 2.8 0 0 0 1.6 ± 1.6 0 2.5 ± 2.5 2.1 ± 2.1
Upland Sandpiper 0 0 1.6 ± 1.6 2.7 ± 2.7 0 7.4 ± 7.4 5.0 ± 2.3 1.6 ± 1.6 0 6.2 ± 0.0 4.5 ± 2.2
Red-tailed Hawk 0 0 0 0 0 0 0 2.1 ± 2.1 0 0 0
Northern Harrier 0 0 3.1 ± 1.8 0 0 0 0 1.6 ± 1.6 0 0 0
Greater Prairie-Chicken 0 0 0 0 0 0 9.2 ± 4.6 1.6 ± 1.6 0 0 0
Wild Turkey 0 0 0 0 0 0 0 0 3.6 ± 3.6 0 0
Pileated Woodpecker 0 0 0 0 0 0 0 0 3.6 ± 3.6 0 0
Northern Flicker 0 8.3 ± 8.3 0 2.8 ± 2.8 0 6.1 ± 6.1 0 1.6 ± 1.6 0 1.2 ± 1.2 2.1 ± 2.1
Yellow-bellied Sapsucker 0 0 0 0 0 0 0 0 3.6 ± 3.6 0 0
Eastern Kingbird 4.2 ± 4.2 14.0 ± 8.4 1.6 ± 1.6 0 11.9 ± 6.2 18.5 ± 9.8 3.8 ± 2.5 3.6 ± 2.1 16.0 ± 9.4 2.5 ± 1.5 6.8 ± 4.1
Eastern Phoebe 0 0 0 0 0 0 0 0 16.7 ± 16.7 0 0
Willow Flycatcher 0 0 0 0 0 0 1.2 ± 1.2 0 0 0 0
Alder Flycatcher 0 0 0 0 0 11.1 ± 11.1 1.2 ± 1.2 0 0 0 0
Barn Swallow 0 0 0 0 0 0 1.2 ± 1.2 0 0 0 0
Cliff Swallow 0 0 0 2.7 ± 2.7 0 0 0 0 0 0 0
American Crow 0 0 0 0 0 0 0 0 0 1.2 ± 1.2 2.4 ± 2.4
Marsh Wren 0 0 0 5.3 ± 5.3 10.0 ± 7.2 0 0 0 0 2.5 ± 2.5 0
Sedge Wren 61.1 ± 29.1 19.0 ± 12.6 45.3 ± 20.9 35.3 ± 17.8 33.9 ± 20.0 22.2 ± 22.2 50.8 ± 12.9 95.6 ± 20.8 0 21.2 ± 16.7 2.4 ± 2.4
American Robin 0 0 0 0 0 0 1.2 ± 1.2 0 0 0 0
Gray Catbird 4.2 ± 4.2 0 0 0 2.4 ± 2.4 0 0 0 0 0 0
Warbling Vireo 0 0 0 0 0 0 0 1.6 ± 1.6 0 0 0
Yellow Warbler 0 0 1.6 ± 1.6 0 7.7 ± 5.1 33.3 ± 33.3 8.8 ± 4.7 0 0 0 0
Common Yellowthroat 8.3 ± 8.3 6.7 ± 6.7 4.7 ± 3.0 8.3 ± 4.8 17.8 ± 9.0 11.1 ± 11.1 14.2 ± 5.2 23.7 ± 7.8 6.9 ± 6.9 1.2 ± 1.2 11.0 ± 2.4
Grasshopper Sparrow 0 15.2 ± 15.2 1.6 ± 1.6 13.3 ± 13.3 6.3 ± 6.3 0 37.5 ± 25.2 0 72.3 ± 32.1 55.0 ± 22.5 66.1 ± 18.6
Le Conte's Sparrow 76.4 ± 11.2 60.2 ± 27.8 75.0 ± 14.7 47.1 ± 21.8 30.4 ± 14.9 46.8 ± 21.5 60.4 ± 19.5 41.7 ± 8.3 9.1 ± 9.1 35.0 ± 13.9 2.4 ± 2.4
Vesper Sparrow 0 0 0 2.7 ± 2.7 0 0 0 0 30.2 ± 10.1 0 4.5 ± 2.2
Savannah Sparrow 133.3 ± 34.0 104.0 ± 30.6 139.1 ± 12.6 96.9 ± 41.2 89.9 ± 10.8 45.1 ± 26.2 93.8 ± 30.0 35.4 ± 4.4 6.9 ± 6.9 126.2 ± 18.8 51.8 ± 25.1
Song Sparrow 0 0 0 2.8 ± 2.80 10.8 ± 5.5 41.8 ± 13.1 6.2 ± 3.4 10.0 ± 1.7 0 0 2.4 ± 2.4
Chipping Sparrow 0 0 0 0 0 0 0 0 16.7 ± 16.7 0 0
Lark Sparrow 0 0 0 0 0 0 0 0 39.2 ± 14.9 0 0
Field Sparrow 0 0 0 0 0 0 0 0 10.3 ± 10.3 0 0
Clay-colored Sparrow 26.4 ± 4.2 139.9 ± 27.5 42.2 ± 22.7 95.3 ± 22.5 79.6 ± 21.3 130.0 ± 10.1 37.5 ± 16.4 96.0 ± 21.4 82.1 ± 30.4 2.5 ± 1.5 30.4 ± 24.4
Swamp Sparrow 0 0 0 2.8 ± 2.8 2.9 ± 2.9 0 2.5 ± 1.5 0 0 0 0
Nelson's Sharp- tailed Sparrow 4.2 ± 4.2 0 0 0 0 0 0 0 0 0 0
Bobolink female 11.1 ± 11.1 2.9 ± 2.9 20.3 ± 11.2 27.0 ± 14.7 20.8 ± 9.2 0 26.7 ± 9.1 19.3 ± 11.3 23.6 ± 15.8 8.8 ± 3.2 29.2 ± 20.5
Bobolink male 22.2 ± 13.6 23.6 ± 8.0 62.5 ± 7.7 41.0 ± 4.2 67.3 ± 23.1 28.3 ± 19.9 70.4 ± 11.6 61.2 ± 20.6 37.4 ± 21.8 27.5 ± 10.0 48.8 ± 25.6
Western Meadowlark 13.9 ± 8.3 0 4.7 ± 1.6 0 3.5 ± 2.3 0 10.4 ± 1.3 0 19.6 ± 7.9 21.2 ± 3.2 17.6 ± 5.7
Red-winged Blackbird 16.7 ± 11.8 0 3.1 ± 3.1 0 94.2 ± 24.9 0 7.1 ± 4.4 0 3.4 ± 3.4 43.8 ± 15.9 42.9 ± 23.0
Yellow-headed Blackbird 0 0 0 0 0 0 0 0 0 3.8 ± 3.8 0
Brewer's Blackbird 5.6 ± 5.6 0 0 0 0 24.2 ± 24.2 2.9 ± 1.8 0 0 2.5 ± 2.5 8.6 ± 5.5
Brown-headed Cowbird female 4.2 ± 4.2 0 1.6 ± 1.6 0 0 6.1 ± 6.1 1.7 ± 1.7 1.6 ± 1.6 0 2.5 ± 1.5 2.1 ± 2.1
Brown-headed Cowbird male 4.2 ± 4.2 0 0 0 0 0 6.7 ± 2.0 0 0 2.5 ± 1.5 2.4 ± 2.4
Common Grackle 0 0 0 0 4.8 ± 4.8 0 0 0 0 0 0
American Goldfinch 0 8.9 ± 5.8 4.7 ± 3.0 16.6 ± 8.4 10.0 ± 5.5 10.7 ± 8.5 7.5 ± 3.6 12.0 ± 10.0 50.0 ± 50.0 0 9.5 ± 9.5
Total number of species 15 12 19 17 21 16 26 19 19 27 26

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