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

Table 3


Table 3: Back-transformed mean density of birds/10 ha in summer on conventional, minimum-tillage, and organic fields in fallow, sunflower, and wheat in southeastern North Dakota during 1991-93. a
Year Conventional Minimum-till Organic
1991 11 20 10
1992 11 11 12
1993 11 10 9
Mean 11 11 10
Year Fallow Sunflower Wheat
1991 14 16EF 10
1992 23AB 7AE 6B
1993 15C 6CDF 10D
Mean 17 9 9
aNumbers in a row or a column followed by the same letter differ (P ≤ 0.05).


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