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 |
