Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie Annual Report: 2000
Table 6
Table 6. Percentage
of grassland passerine nests that were parasitized by Brown-headed Cowbirds
in 2000. Total numbers of nests are shown in parentheses.
| Species |
Crookston |
Glyndon |
Sheyenne |
Total |
| % (N) |
% (N) |
% (N) |
% (N) |
| Red-winged Blackbird |
14.3 (7) |
0 (4) |
23.1 (13) |
16.7 (24) |
| Western Meadowlark |
0 (2) |
50.0 (2) |
11.8 (17) |
14.3 (21) |
| Brewer's Blackbird |
11.1 (9) |
- |
- |
11.1 (9) |
| Savannah Sparrow |
2.3 (129) |
4 (25) |
29.5 (44) |
8.6 (198) |
| Clay-colored Sparrow |
4.8 (21) |
1.1 (93) |
9.7 (62) |
4.5 (176) |
| Bobolink |
0 (19) |
5.6 (18) |
0 (22) |
1.7 (59) |
| Field Sparrow |
- |
- |
0 (16) |
0 (16) |
| Grasshopper Sparrow |
0 (1) |
- |
0 (8) |
0 (9) |
| Le Conte's Sparrow |
0 (4) |
0 (4) |
- |
0 (8) |
| Vesper Sparrow |
- |
- |
0 (10) |
0 (10) |
| Sedge Wren |
0 (6) |
0 (1) |
- |
0 (7) |
| Lark Sparrow |
- |
- |
0 (3) |
0 (3) |
| Dickcissel |
- |
0 (1) |
- |
0 (1) |
| Total |
3.0 (198) |
2.7 (147) |
12.8 (187) |
6.4 (531) |
