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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
Species	% (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)

U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/bca2000/table6.htm
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