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Bird Use and Nesting in Conventional,
Minimum-tillage, and Organic Cropland

Table 1

Table 1: The percent frequency of species that occurred on ≤5% of ≤1 seasonal surveys and the total number of individuals recorded in cropland fields during spring, summer, fall, and winter in southeast North Dakota, 1991-93.

Species	Spring		Summer		Fall		Winter
Species	% Freq.	Total	% Freq.	Total	% Freq.	Total	% Freq.	Total
Sharp-tailed grouse	2	13	<1	19	5	327	9	173
Gray partridge	4	40	1	69	5	517	14	201
Ring-necked peasant	0	0	0	1	2	346	10	357
Killdeer	3	24	6	373	2	146	0	0
Mourning dove	<1	2	5	388	18	471	0	0
Horned lark	66	712	30	1,939	25	991	38	886
Brown-headed cowbird	0	0	7	939	0	0	0	0
Yellow-headed blackbird	0	0	2	757	<1	93	0	0
Red-winged blackbird	3	277	7	1,104	6	7,534	0	0
Western meadowlark	3	15	2	124	7	166	0	0
Snow bunting	<1	1	0	0	2	262	15	367
Lapland longspur	8	1,997	1	965	2	172	10	575
Chestnut-coll. longspur	8	1,049	2	165	2	31	0	0
Vesper sparrow	0	0	10	582	11	260	0	0
Grasshopper sparrow	<1	1	5	240	5	58	0	0
Other species	3	53	22	1,775	9	795	4	92
Totals	100	4,184	100	9,440	100	12,169	100	2,651

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Bird Use and Nesting in Conventional, Minimum-tillage, and Organic Cropland

Table 1

Bird Use and Nesting in Conventional,
Minimum-tillage, and Organic Cropland